Clear Windows Activation Cache After Hardware Change
After swapping a motherboard, CPU, or hard drive, Windows may show an activation error or waterma...
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All notesHow to Run Windows Security Features on Ubuntu
If you need to run Windows-specific security features—like Windows Defender, Windows Firewall, or...
Fix Windows Security 502 Bad Gateway Error
If you're seeing a "502 Bad Gateway" error when opening Windows Security (also known as Windows D...
Fix Windows Search 504 Gateway Timeout Due to Antivirus Interference
If you're seeing a "504 Gateway Timeout" error when using Windows Search—especially when searchin...
Fix Windows Security Rate Limit Error: Can't Open App
You try to open Windows Security or a protected app, and instead you see an error message like "R...
Windows Defender File Locked: How to Fix It
You try to edit, move, or delete a file and Windows says it's open in Windows Defender. This can ...
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