
Windows Security Troubleshooting Checklist
If Windows security features aren't working as expected—like Windows Defender won't start, update...

If Windows security features aren't working as expected—like Windows Defender won't start, update...

If you see error 0x80244022 when trying to update Windows, the update process is failing to reach...

If you see a BitLocker DNS error permission denied message, it usually means the...

If Windows Security (formerly Windows Defender) feels sluggish or unresponsive after a recent upd...

You try to open an app, but it either won't start or can't connect to the internet. A common caus...

When Windows Defender fails to update, you might see error codes like 0x80070643, 0x80240022, or ...