Knowledge base for software setup, errors, and daily tool work.

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Remote Desktop Authentication Failed: Troubleshooting Checklist

When you see "Authentication failed" while trying to connect to a remote desktop, it usually mean...

Fix OneDrive Sync Stuck on 'Processing Changes'

If OneDrive shows 'Processing changes' for longer than a few minutes, your files aren't syncing. ...

Set Windows Defender Threat Service to Automatic Startup

If Windows Defender is not running or you see errors like “Threat service has stopped,” the under...

Fix Windows Update Black Screen After Restart

After installing a Windows update and restarting, a black screen (with or without a cursor) can b...

How to Reduce OneDrive Sync Cache Size

OneDrive can use a lot of local disk space for its sync cache, sometimes growing to tens of gigab...