
Windows Defender Access Denied Troubleshooting Checklist
You try to open Windows Defender or run a scan and get an "Access Denied" message. This usually m...
Software troubleshooting desk

You try to open Windows Defender or run a scan and get an "Access Denied" message. This usually m...

You try to update OneDrive but get an error message. Reinstalling might fix it, but that means lo...

If OneDrive is using high CPU and showing error 0x8004de40, the sync client is likely stuck in a ...

You open Chrome after a crash and see a generic welcome screen instead of your bookmarks, history...

You try to sign in to Chrome and get a sync error. Your bookmarks, passwords, and settings aren't...

If you notice Windows Security (formerly Windows Defender) using excessive memory—sometimes hundr...