Fix Port Already Allocated Error in Windows Security
If you see a 'port already allocated' error when starting a Windows Security-related service or a...
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Browse labChecklist for Windows Security Module Errors
When Windows Security (formerly Windows Defender) throws module errors, you might see messages li...
Fix Windows 11 Update Stuck on Loading Screen
You're updating Windows 11, and the screen shows a spinning circle or a progress bar that hasn't ...
How to Fix BitLocker Version Mismatch Not Working
You try to unlock a BitLocker-encrypted drive on a different computer, and get an error about a v...
Fix Windows Defender Connection Refused on Windows 10
When you see "connection refused" while using Windows Defender on Windows 10, it usually means th...
Fix Windows Update Error 0x80070020: Port Already Allocated
When you see error 0x80070020 during a Windows Update, it usually means a program is already usin...