How to Enable Windows Security in Windows 11
If Windows Security isn't running or you see a message like "Your IT administrator has limited ac...
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All notesWindows Defender Not Working After Update: Checklist
After a Windows Update, Windows Defender (now called Microsoft Defender Antivirus) may stop worki...
How to Fix Windows Defender Not Opening
If Windows Defender won’t open—whether it crashes, shows a blank window, or does nothing when you...
Fix Windows Activation Error 0x80070005 Access Denied
When you try to activate Windows and see error 0x80070005 with the message “Access Denied,” it us...
Fix Command Prompt Service Unavailable Error
When you open Command Prompt and see 'Service unavailable' or 'The requested service is unavailab...
How to Unlock a File Locked by Windows Security
You try to open, move, or delete a file, but Windows shows a message like "This file is blocked b...
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