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

Fix Chrome Profile 404 Not Found on Mac

If you see a 404 Not Found error when trying to open your Chrome profile on Mac,...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Windows Activation Authentication Failed: Troubleshoot Checklist

When Windows reports 'Activation authentication failed,' it usually means the system couldn't ver...

How to Fix WinRAR Checksum Error in Downloaded Files

You downloaded a file, but when you try to extract it with WinRAR, you get a checksum error. This...

Fix Visual Studio Installer Stuck on Preparing Files

You start a Visual Studio installation or update, and the installer sits on "Preparing files" for...

Fix PowerShell Module Not Found After Path Change

You run Import-Module and get an error like "The specified module 'X' was not lo...