Free guides, interview Q&As, and job responsibility breakdowns — curated by industry veterans to help you crack MNC interviews
Answer:
“First, I will check whether the computer receives power. Then I will check whether it reaches the manufacturer's logo, Windows logo or login screen. Based on where it stops, I will troubleshoot the power, hardware, or operating system issue.”
Steps:
Answer:
“I will disconnect unnecessary USB devices and restart the computer. If it remains stuck, I will check whether the Windows Recovery Environment is available and try Startup Repair. If the problem started after an update, I will consider uninstalling that update through recovery options.”
Answer:
“I will identify whether the problem started after an update, driver installation or unexpected shutdown. I will try Startup Repair and Safe Mode if available. I will then check recent changes and system logs.”
Answer:
“I will check Task Manager for unnecessary startup applications, available disk space and system resource usage. I will also check Windows updates, disk health and whether the computer has enough RAM.”
Useful tool: Task Manager → Startup apps.
Answer:
“I will check the exact error message, keyboard layout, network connectivity and account status. If it is a domain account, I will check whether the computer can contact the domain and escalate account issues when required.”
Answer:
“I will check whether the user profile service has failed to load the normal profile. I will review the relevant Event Viewer logs and check available disk space and profile permissions. Before making profile changes, I will protect the user's data.”
Answer:
“I will first try restarting Windows Explorer using Task Manager. If that does not work, I will check display drivers, startup applications and recent Windows updates.”
Steps:
Answer:
“I will check whether Windows Explorer is running. I will restart Explorer from Task Manager and check whether the issue affects one user profile or all users.”
Answer:
“I will allow sufficient time if Windows is applying updates or preparing a profile. If it remains stuck, I will investigate startup logs, profile issues and recent updates. I will avoid repeatedly forcing shutdowns unless necessary.”
Answer:
“I will disconnect external devices and check whether the issue began after an update or driver change. I will use Windows Recovery Environment to try Startup Repair or Safe Mode and check for hardware or system-file problems.”
Answer:
“I will open Task Manager and check CPU, memory and disk usage. Then I will check startup applications, available disk space, background processes and Windows updates. I will identify the root cause before making changes.”
Answer:
“I will identify which process is consuming the CPU in Task Manager. I will check whether it is a legitimate application, Windows service or suspicious process. If required, I will restart the application, update it or escalate the issue.”
Useful tool: Task Manager → Processes.
Answer:
“I will check memory usage in Task Manager and identify applications consuming excessive RAM. I will close unnecessary applications, check for memory leaks and verify whether the system meets the application's memory requirements.”
Answer:
“I will identify the process causing high disk usage. I will check Windows Update, antivirus scans, background applications, and disk health. If the drive is failing, I will prioritize data protection.”
Answer:
“I will check CPU, RAM, and disk usage, review Event Viewer and identify whether the freezing occurs with a particular application. I will also check drivers, overheating and hardware health.”
Answer:
“I will check system resource usage, available disk space and application-specific issues. I will compare different applications and test whether the problem occurs for one user or all users.”
Answer:
“I will restart Windows Explorer through Task Manager. If it continues, I will check Quick Access history, problematic folders, shell extensions and system files.”
Useful command:
sfc /scannow
Answer:
“I will check startup applications and background services. I will disable unnecessary startup apps after confirming they are not required for business operations.”
Answer:
“I will confirm whether the slowdown started immediately after installation. I will check the application's resource usage, compatibility and background services. If necessary, I will uninstall it according to company policy or roll back the change.”
Answer:
“I can use Settings, System Information or Task Manager to check the processor, RAM, Windows edition and system type.”
Useful commands:
Answer:
“A BSOD occurs when Windows encounters a critical error and cannot continue operating safely. It may be caused by faulty drivers, hardware problems, memory issues, or system corruption.”
Answer:
“I will note the stop code, check when the blue screen occurs and review recent driver or software changes. I will inspect Event Viewer and available crash dumps to identify the cause.”
Answer:
“This error means Windows cannot access the device or partition required for startup. I will check recent storage-driver or BIOS changes and use Windows Recovery Environment to troubleshoot startup. I will also check SSD or hard-drive health.”
Answer:
“I will check recent software and driver changes. I will run system-file checks if Windows can start, inspect crash information and use recovery options if the computer cannot boot normally.”
Answer:
“I will investigate possible RAM problems, drivers and system corruption. I will run Windows Memory Diagnostic or approved hardware diagnostics and check the crash information.”
Answer:
“I will check Event Viewer for unexpected shutdowns, inspect temperatures and power connections, and check for blue-screen events. I will also investigate RAM, power supply and driver problems.”
Answer:
“Event Viewer records Windows system, application and security events. I use it to investigate errors, unexpected shutdowns, service failures and application crashes.”
Command:
eventvwr.msc
Answer:
“A minidump is a small crash-diagnostic file created when Windows encounters certain system crashes. It contains information that can help identify faulty drivers or other causes.”
Typical location:
C:\Windows\Minidump
Answer:
“I will identify the recently updated driver. If appropriate, I will roll it back through Device Manager or use recovery options. I will then install a compatible, approved driver and test the system.”
Answer:
“Possible causes include overheating, faulty RAM, power supply problems or driver issues. I will check temperatures, event logs and hardware diagnostics, then isolate the cause.”
Answer:
“I will check internet connectivity, available disk space and Windows Update status. I will run the Windows Update troubleshooter if available and review update errors before resetting any update components.”
Answer:
“I will record the exact error code, search the relevant Microsoft documentation and check update logs. I will verify disk space, network access and component health before applying the appropriate fix.”
Answer:
“I will check the error code, pending restart status, disk space and update prerequisites. I will also check whether security software or a compatibility issue is preventing installation.”
Answer:
“I will allow the update process to complete if it is still progressing. If it repeatedly fails, I will enter Windows Recovery Environment and consider Startup Repair or uninstalling the latest quality update.”
Answer:
“I will check whether background update tasks are still running. If the slowdown persists, I will inspect resource usage, drivers and recent changes. I will consider a rollback only if the evidence supports it and company policy permits it.”
Answer:
“I can run winver to check the Windows version and OS build.”
winver
Answer:
“I will check the service status and its startup configuration. I will review service errors and system policies before attempting to restart the service.”
Useful command:
services.msc
Answer:
“I will check available disk space and use Storage settings or Disk Cleanup to remove safe temporary files. I will not delete user data or unknown system files to create space.”
Answer:
“A quality update generally provides security fixes, bug fixes and reliability improvements. A feature update introduces a newer Windows release with additional functionality or platform changes.”
Answer:
“I will assess the business impact, document the issue and inform the application or endpoint management team. I will collect logs and follow the approved rollback or mitigation process while keeping the user informed.”
Answer:
“System File Checker scans protected Windows system files and repairs corrupted files when possible. I use it when I suspect Windows system-file corruption.”
Command — run in an elevated Command Prompt:
sfc /scannow
Answer:
“DISM can service and repair the Windows image, including the component store used by Windows servicing. I use it when system-image corruption is suspected.”
Common command:
DISM /Online /Cleanup-Image /RestoreHealth
Answer:
“SFC checks and repairs protected system files. DISM repairs the Windows image that can provide the files used by SFC.”
Common repair sequence:
DISM /Online /Cleanup-Image /RestoreHealth
sfc /scannow
Answer:
“Safe Mode starts Windows with a limited set of drivers and services. It helps determine whether the issue is caused by a third-party driver, application or service.”
Answer:
“If Windows starts, I can access the recovery options through Settings. If it cannot start, I can enter Windows Recovery Environment and select Startup Settings, then restart into Safe Mode.”
Answer:
“WinRE is a recovery environment that provides tools such as Startup Repair, System Restore, uninstall updates and Command Prompt to troubleshoot Windows startup problems.”
Answer:
“Startup Repair is a Windows recovery tool that diagnoses and attempts to repair certain problems preventing Windows from starting.”
Answer:
“System Restore returns certain system settings, drivers and installed applications to an earlier restore point. It is useful when a recent system change causes problems. I check the impact before proceeding.”
Answer:
“System Restore rolls back certain system changes to an earlier restore point. Reset This PC reinstalls Windows and offers options to keep personal files or remove them. Installed applications and settings may be removed, so I protect data first.”
Answer:
“I would consider reinstalling Windows only after reasonable troubleshooting has failed or the operating system is severely damaged. I would confirm approvals, protect user data, verify licensing and application requirements, and follow the company deployment process.”
Answer:
“I will check the Event Viewer logs and confirm whether the issue is limited to one user. I will protect the user's data and investigate profile corruption. If needed, I will create or repair the profile using the approved procedure.”
Answer:
“I will verify the user's identity and determine whether it is a local account or domain account. I will use the authorized password-reset process and confirm that the user can sign in.”
Answer:
“I will check the exact error, network connectivity, domain connectivity, time synchronization and computer trust relationship. I will also confirm whether the issue affects only that user or the particular computer.”
Answer:
“I will confirm the user's identity and check the account status with the authorized administrator. If the account was intentionally disabled, I will follow the approval process rather than enabling it without authorization.”
Answer:
“I will check whether the user has logged into a temporary profile, whether their files are redirected or stored on OneDrive, and whether the expected profile path is available. I will protect the data before making profile changes.”
Answer:
“I will check the error message and whether the user can sign in using another approved method. I will use the Windows PIN reset process and investigate Windows Hello or organizational policy issues if the problem continues.”
Answer:
“I will check the sensor, Windows Hello settings, device drivers and camera privacy settings where applicable. I will also check whether the user can sign in using their PIN or another approved method.”
Answer:
“I will identify which application is requesting credentials. Then I will check account status, saved credentials, password changes, connectivity and authentication logs. I will avoid repeatedly entering credentials without understanding the cause.”
Answer:
“It usually indicates that the computer's secure relationship with the Active Directory domain is no longer valid. I will check domain connectivity and computer account status, then involve the domain administrator or follow the approved repair procedure.”
Answer:
“I will check whether the computer has network or domain connectivity, whether the new password is being entered correctly and whether cached credentials are involved. I will also check account lockout and authentication errors.”
Answer:
“I will check the network connection, IP configuration, gateway and DNS. I will determine whether the issue affects one computer or multiple users.”
Useful commands:
Answer:
“It displays detailed network configuration, including IP address, subnet mask, gateway, DNS servers, DHCP status and adapter information.”
Answer:
“It releases the current DHCP-assigned IPv4 address on the selected applicable adapter. I use it as part of troubleshooting when an address needs to be renewed.”
Answer:
“It requests a new DHCP configuration for the applicable adapter. I use it when the computer has trouble obtaining or renewing its IP address.”
Answer:
“This usually indicates that Windows assigned itself a link-local address because it did not obtain an IPv4 address from DHCP. I will check the cable or Wi-Fi, adapter, DHCP availability and switch or access point.”
Answer:
“I will check for hidden devices and hardware changes, review the BIOS or UEFI settings and install the approved vendor driver if required. If the adapter remains undetected, I will investigate hardware failure.”
Answer:
“I will check Airplane Mode, Wi-Fi settings, the wireless adapter, drivers and relevant services. I will compare with another device to determine whether the issue is with the laptop or wireless infrastructure.”
Answer:
“It generally indicates that the computer has some network connectivity but may not be able to reach required network resources or the internet. I will check IP configuration, gateway, DNS and network access.”
Answer:
“I will check the adapter driver, power-management settings and Windows event logs. I will also investigate recent updates and hardware faults before changing the adapter configuration.”
Answer:
“I can use Windows network troubleshooting options or Network Reset if simpler fixes fail. Before resetting, I will record relevant settings because VPNs, virtual adapters and network configurations may need to be restored.”
Answer:
“Device Manager displays installed hardware and their drivers. I use it to identify missing drivers, disabled devices and hardware errors.”
Command:
devmgmt.msc
Answer:
“It indicates that Windows has detected a problem with the device or its configuration. I will open the device properties, check the error code and troubleshoot the driver or hardware.”
Answer:
“Code 10 means Windows cannot start the device. I will check the driver, device connection, compatibility and hardware status. I will update or reinstall the approved driver and test again.”
Answer:
“Code 43 means Windows has stopped the device because it reported a problem. I will check the driver, firmware, connection and hardware diagnostics to identify the cause.”
Answer:
“I will open Device Manager, select the device, open Properties and check the Driver tab. If Roll Back Driver is available, I will use it when a recent driver update is suspected to have caused the issue.”
Answer:
“I will first obtain the correct approved driver. Then I will reinstall or update it through Device Manager or the vendor's supported installer and verify that connectivity works afterward.”
Answer:
“I will check the printer status, driver version and error messages. If the issue started after the update, I will consider rolling back to the approved working driver and test printing.”
Answer:
“I will check Device Manager for warning symbols, open the device properties and review its status. I will also test the device functionality and check relevant event logs.”
Answer:
“I will test another USB port and cable if applicable, check Device Manager and verify whether the device works on another computer. Then I will investigate the driver, power and hardware.”
Answer:
“Approved drivers improve compatibility, reliability and security. They also reduce the risk of crashes and hardware malfunction caused by incorrect or unsupported drivers.”
Answer:
“I will check storage usage in Settings and identify large files, temporary files and unnecessary applications. I will use approved cleanup tools and confirm that important user data is backed up before removing anything.”
Answer:
“Disk Cleanup is a Windows utility used to remove selected unnecessary files, such as temporary files and certain cached or update-related files.”
Answer:
“Storage Sense is a Windows feature that can automatically clean certain unnecessary files and manage temporary storage to free disk space.”
Answer:
“I will check which drive is full, identify safe cleanup options and determine whether user data should be moved to approved storage. I will avoid deleting files without confirming their purpose.”
Answer:
“CHKDSK checks a file system and can identify certain disk errors. Depending on the options used, it can also attempt repairs.”
Example:
chkdsk C: /scan
“I will review disk health and the risks before running repair operations, especially if the drive may be failing.”
Answer:
“I will protect important data first, check disk health and review the error details. I will then use appropriate file-system diagnostics and repair tools according to the severity of the issue.”
Answer:
“My first priority is protecting the user's data. I will minimize unnecessary disk activity and arrange appropriate recovery or replacement. I will not repeatedly run intensive repair operations on a potentially failing drive.”
Answer:
“I will check BIOS or UEFI detection and open Disk Management. If the disk is detected but unallocated, I will confirm that it contains no required data before initializing or partitioning it.”
Answer:
“I can right-click Start and select Disk Management, or run the following command.”
diskmgmt.msc
Answer:
“An HDD stores data on rotating magnetic disks and contains moving parts. An SSD uses flash memory and has no moving parts. SSDs generally provide faster access times and improve system responsiveness.”
Answer:
“I will record the error message and check whether the issue affects one user or multiple users. I will review application logs, verify system requirements and test whether the issue started after an update. If required, I will repair or reinstall the application.”
Answer:
“I will check whether the application is still processing or completely frozen. I will check CPU, memory and disk usage. If it remains unresponsive, I will close it carefully and investigate the cause.”
Answer:
“I can press Ctrl + Shift + Esc to open Task Manager directly. I use it to check running processes, CPU, memory, disk usage and startup applications.”
Answer:
“It may be a user-profile, permission, configuration or per-user application setting issue. I will compare the two accounts and check the application's user-specific configuration.”
Answer:
“I will check recent Windows updates, application updates, configuration changes and error logs. I will determine whether the problem affects one user or the entire organization.”
Answer:
“I will open Settings, go to Apps and locate the application. If supported, I will select Modify, Repair or the relevant advanced option. I will test the application after the repair.”
Answer:
“I will check the installation error, system requirements, available disk space and permissions. I will also verify whether software installation requires administrator privileges or approval from the IT team.”
Answer:
“I will check the application's supported Windows versions and architecture. I will look for an approved compatible version or vendor fix and use compatibility settings only if appropriate.”
Answer:
“I will check Task Manager to confirm the application is running. I will try switching windows, checking multiple desktops and using the application's taskbar icon. If necessary, I will restart it after protecting unsaved work.”
Answer:
“I will use Settings → Apps → Installed apps or the application's supported uninstaller. I will follow the company's software removal process and verify that the application is no longer installed.”
Answer:
“I will check Windows Security and determine whether Microsoft Defender or another approved security product is responsible for protection. I will verify the security status and follow company policy to restore protection.”
Answer:
“I will follow the company's security incident procedure. If instructed, I will isolate the device from the network, notify the security team and run approved security scans. I will avoid deleting evidence or attempting unauthorized cleanup.”
Answer:
“I will check internet connectivity, update status, system time and security policy. I will review the error and confirm that required update services or endpoints are accessible.”
Answer:
“I will confirm whether the application is authorized and check the firewall notification and policy. If access is required, I will request or implement an approved firewall rule rather than disabling the firewall.”
Answer:
“I will record the recovery prompt and verify the device identity. I will retrieve the recovery key through the organization's approved process and investigate whether a BIOS, firmware or boot configuration change triggered recovery.”
Answer:
“BitLocker is a Windows drive-encryption feature that protects data stored on supported drives. A recovery key may be required after certain hardware or boot configuration changes.”
Answer:
“I will verify the application's source, publisher and security status. I will not bypass the warning without authorization. If the software is required, I will follow the approved application validation process.”
Answer:
“I will treat it as a potential security incident. I will follow the organization's reporting and containment procedure, notify the security team and provide the relevant details. I will not assume the computer is safe simply because no error appeared.”
Answer:
“I will review the detection and follow the security team's approved remediation process. I will check whether the application is authorized and ensure that the threat is handled according to company policy.”
Answer:
“Standard user access reduces the risk of unauthorized system changes and limits the impact of malware. I will use elevated privileges only when required and authorized.”
Answer:
“I will check printer power, connection, status and the print queue. Then I will verify the default printer, driver and Print Spooler service.”
Answer:
“The Print Spooler manages print jobs sent from applications to printers. If it stops or becomes stuck, printing may fail.”
Command to open Services:
services.msc
Answer:
“I will cancel the stuck job if possible. If the queue remains blocked, I will check and restart the Print Spooler according to the support procedure, then test printing.”
Answer:
“I will verify the printer model and installed driver. I will install the correct approved driver and remove conflicting drivers if necessary, following the organization's procedure.”
Answer:
“I will test another USB port and another keyboard or mouse. Then I will check Device Manager, driver status and USB power settings. If the user needs to work immediately, I will provide a replacement device.”
Answer:
“I will check the camera in Windows and confirm that Teams has permission to use it. I will also check whether another application is using the camera and verify the driver.”
Answer:
“I will check the selected input device, microphone mute status, Windows privacy permissions and application settings. Then I will test the microphone in Windows sound settings.”
Answer:
“I will check the cable, monitor input source and docking station if used. Then I will open Display Settings, select Detect and test another cable or monitor to isolate the issue.”
Answer:
“I will open Settings → System → Display and select the recommended resolution. If the correct resolution is unavailable, I will check the graphics driver, monitor connection and display compatibility.”
Answer:
“I will confirm that Bluetooth is enabled and the device is in pairing mode. Then I will check the Bluetooth adapter, driver, device battery and Windows Bluetooth troubleshooting options.”
Answer:
“A Windows service is a background component that performs system or application tasks. Examples include Windows Update, Print Spooler and Windows Audio.”
Answer:
“I will check the service status, startup type and related errors. I will restart it only if appropriate and authorized, then verify that the dependent application or function works.”
Answer:
“I can press Win + R, type services.msc and press Enter. This opens the Services management console.”
Answer:
“I will check the Windows Audio service and its dependencies. If appropriate, I will start or restart the service and then test the output device.”
Answer:
“Task Scheduler runs tasks automatically based on triggers such as a time, login or system event. I use it to investigate unexpected scheduled activity or failed scheduled tasks.”
Command:
taskschd.msc
Answer:
“The Registry is a hierarchical database that stores Windows and application configuration settings. I only modify it when necessary, with proper authorization and a backup or documented rollback plan.”
Answer:
“I can open Settings → System → Activation to check activation status. If there is an issue, I will verify the license and follow the organization's activation process.”
Answer:
“I will check the time zone, automatic time settings and time synchronization. On domain computers, I will also check domain time synchronization. If the date resets after power loss, I will investigate the CMOS battery or hardware.”
Answer:
“I will open Task Manager and select Startup apps. I will review which applications have a high startup impact and disable unnecessary ones only after confirming they are not required.”
Answer:
“I will inspect the process name, file location, publisher and resource usage. I will verify whether it is legitimate before ending it. If it appears suspicious, I will follow the security incident process.”
Answer:
“I will check the Recycle Bin, approved backups, OneDrive or other authorized storage locations. If the file is not available, I will follow the organization's data recovery procedure.”
Answer:
“I will check internet connectivity, sign-in status, sync errors and available storage. I will also confirm whether the files are available online and whether the user has the correct permissions.”
Answer:
“I will check connectivity, available disk space, file names and sync status. I will also check whether the OneDrive client needs to be updated or signed in again.”
Answer:
“Synchronization keeps files aligned across locations or devices. Backup maintains recoverable copies of data. Synchronization alone is not always sufficient protection against deletion or corruption.”
Answer:
“I will check the backup status, restore point or backup version and the user's permissions. I will verify that the correct destination is selected and escalate to the backup team if needed.”
Answer:
“I will confirm authorization, identify and back up user data, verify the recovery or installation media, check BitLocker recovery requirements and confirm that required applications and drivers can be restored.”
Answer:
“I will confirm which data must be transferred and use approved storage or migration tools. I will verify the transferred files, configure required applications and ensure the new device meets company security standards.”
Answer:
“A restore point captures certain Windows system settings and configuration information at a particular time. It can help reverse certain system changes but is not a replacement for a user-data backup.”
Answer:
“I will check whether the user is signed in with the correct profile and inspect the expected file locations, including OneDrive and the Windows.old folder if applicable. I will protect the existing data and follow the recovery process.”
Answer:
“I will identify important files, use approved backups where possible and avoid destructive actions until the data is protected. I will explain any risks before recovery, reset or reinstall operations.”
Answer:
“I will review the available recovery options and try Startup Repair. If that fails, I will investigate recent updates, drivers and disk health. I will use System Restore or uninstall a recent update if appropriate, protecting user data before further recovery actions.”
Answer:
“It suggests that a driver, startup application, service or other component loaded during normal startup may be causing the issue. I will isolate recent changes and use a controlled troubleshooting process to identify the cause.”
Answer:
“This points toward a user-profile or per-user configuration issue. I will back up the user's data, check profile logs and migrate the profile using the approved process if repair is not practical.”
Answer:
“I will compare performance on and off the company network, where permitted. I will check network drives, login scripts, Group Policy processing, proxy settings and applications that depend on internal services.”
Answer:
“I will check domain connectivity, the user's and computer's organizational units, policy permissions and Event Viewer logs. I can run gpupdate /force to request a policy refresh, then verify the applied policies.”
Useful commands:
gpupdate /force
gpresult /r
Answer:
“It displays a summary of Group Policy results for the user and computer. I use it to check which policies have been applied and investigate policy-related issues.”
Answer:
“I will verify network reachability, whether Remote Desktop is enabled, the user's permissions and firewall rules. I will also confirm that the Windows edition supports hosting Remote Desktop and that the required network port is reachable.”
Answer:
“I will check the BIOS settings, boot order, storage mode and Secure Boot configuration without making unnecessary changes. I will follow the manufacturer's recovery guidance and check whether BitLocker recovery is required.”
Answer:
“I will document the symptoms, error messages, diagnostic results and actions already taken. I will assess the business impact and escalate to the appropriate team with complete information. I will continue tracking the ticket and updating the user.”
Answer:
“First, I understand the issue and its business impact. Then I check the symptoms, error messages and recent changes. I isolate whether the problem is related to hardware, Windows, drivers, applications, user profiles or network connectivity. I use appropriate diagnostic tools, apply the safest fix, test the result and document the root cause. If required, I escalate the issue while keeping the user informed.”
