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

Fix 'err tunnel connection failed' on Chrome for Android

You open Chrome on your Android phone and instead of loading a page, you see 'err tunnel connecti...

Windows Activation Error Troubleshooting Checklist: Step-by-Step

Common Activation Error Types

Windows activation errors usually appear as a watermark on ...

Fix Windows Security Not Starting Automatically After Boot

You boot your PC and notice Windows Security (formerly Windows Defender) isn't running. The icon ...

Fix Task Scheduler Not Running on Windows 10

Task Scheduler not running tasks can be frustrating. You might see tasks stuck at "Ready" or "Run...

How to Fix OneDrive Sync File Locked Error

You're trying to sync a file in OneDrive, but you get an error saying the file is locked. This us...

How to Fix Windows Defender 502 Bad Gateway Error

If you see a '502 bad gateway' error in Windows Defender, it usually means the security service c...