Fix 'Windows Defender Not Recognized' Error in Command Prompt
When you type MpCmdRun or Windows Defender in Command Prompt and see
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View listHow to Clear Temp Files and Cache Using Command Prompt
If your computer is running slowly or you're running low on disk space, temporary files and cache...
Windows Defender Not Working After Update: Checklist
After a Windows Update, Windows Defender (now called Microsoft Defender Antivirus) may stop worki...
Fix Windows Security Auto-Start Permission Denied Error
You might see a 'permission denied' error when Windows Security (Windows Defender) fails to start...
How to Fix Windows Security Error 0x80073b01
You may see error 0x80073b01 when opening Windows Security or trying to use its features. It usua...
Fix Windows Search Update Stuck on Installing
You see a Windows Search update stuck on 'Installing' in Windows Update. The progress bar doesn't...
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