
How to Fix Windows Security Not Working
Windows Security (formerly Windows Defender) may fail to open, show a blank page, or refuse to up...
Software troubleshooting desk

Windows Security (formerly Windows Defender) may fail to open, show a blank page, or refuse to up...

You set up Windows Security on one device—enabled tamper protection, added exclusions, configured...

When installing or updating software, you might see an error that Windows Defender has locked a f...

If the Microsoft Store won't load, apps fail to download, or updates get stuck, a corrupted cache...

When BitLocker prompts for a recovery key and then shows an "invalid configuration" error, the dr...

If you see an error like "Your token has expired" or "Authentication needed" in Microsoft Teams, ...