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    1. Install Windows Updates Click on Start > Settings > Windows Update > Check for updates. Install any pending updates and restart your PC.

    2. Scan for Malware Open Windows Security from the Start menu. Select Virus & threat protection > Quick scan. If issues persist, run a Full scan.

    3. Run SFC and DISM Scans Right-click on Start and select Terminal (Admin). Run the following commands one by one: sfc /scannow DISM /Online /Cleanup-Image /CheckHealth DISM /Online /Cleanup-Image /ScanHealth DISM /Online /Cleanup-Image /RestoreHealth Restart your PC after the scans.

    4. Enable Task Manager via Registry Editor Press Windows key + R, type regedit, and press Enter. Navigate to HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies. If the System key exists, select it. Otherwise, create it by right-clicking Policies > New > Key > Name it System. Right-click System > New > DWORD (32-bit) Value > Name it DisableTaskMgr. Double-click DisableTaskMgr, set its value to 0, and click OK. Restart your PC.

    5. Enable Task Manager via Group Policy Editor (Windows Pro/Education/Enterprise) Press Windows key + R, type gpedit.msc, and press Enter. Navigate to User Configuration > Administrative Templates > System > Ctrl + Alt + Del Options. Double-click Remove Task Manager, select Disabled, and click Apply > OK.

    6. Re-register Task Manager Using PowerShell Open PowerShell as Administrator. Run the command: Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"} Restart your PC.

    7. Perform a System Restore Search for Create a restore point in the Start menu and open it. Under the System Protection tab, click System Restore. Select a restore point when Task Manager was working and follow the prompts.

    8. Reset Windows (Last Resort) Go to Start > Settings > System > Recovery. Click Reset PC > Keep my files and follow the on-screen instructions.

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