
Troubleshoot Windows Defender Using Log Files: A Checklist
When Windows Defender stops updating, fails to scan, or blocks legitimate files, the built-in log...

When Windows Defender stops updating, fails to scan, or blocks legitimate files, the built-in log...

You're locked out of a BitLocker-encrypted drive and see an "access denied" message when trying t...

You might see a Windows Security alert about a DNS error after installing or updating a third-par...

You change your OneDrive sync settings—like which folders to sync or the bandwidth limit—but the ...

Windows Security (formerly Windows Defender) can sometimes fail to open, show blank screens, or r...

You click Check for Updates, and the progress bar spins endlessly—sometimes for hours. This is th...