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

Fix Windows Security Offline Installer Stuck Issues

You download the Windows Security offline installer (the .cab or .psf file) to update Defender de...

Fix Microsoft Teams Module Not Found Error by Clearing Cache

If you see a 'module not found' error when starting Microsoft Teams, it's often caused by a corru...

Fix Windows Activation 502 Bad Gateway Due to Proxy Settings

If you see a "502 Bad Gateway" error when trying to activate Windows, the problem is often a misc...

Fix Windows Security Connection Refused Certificate Error

When you see 'connection refused' combined with a certificate error in Windows Security, it usual...

Fix npm install ENOTFOUND on Windows 10: Package.json Issues