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How to Fix Windows Defender Authentication Failed Error

If you see "Authentication failed" when opening Windows Defender or trying to run a scan, it usua...

Fix Windows Defender Corrupted Cache Error

If you see an error like "Windows Defender cache corrupted" or "The Windows Defender cache is cor...

Fix Windows Security Authentication Error 0x80070035

Windows Terminal Settings Not Saving: How to Fix

You change a setting in Windows Terminal—font size, color scheme, or default profile—but after re...

Fix Microsoft Store High CPU Usage on Windows 11

You open Task Manager and see Microsoft Store eating 20-30% CPU, even when you're not using it. T...

Fix Windows Defender Can't Connect to Internet Error

If Windows Defender shows “Can’t connect to the internet” or similar errors, it usually means the...