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

Fix 'Windows Security Cannot Connect to Microsoft Defender' Error

When you open Windows Security and see the message 'Windows Security cannot connect to Microsoft ...

Fix GitHub Actions Cache Action Permission Denied Error

Fix Windows Update Authentication Failed Due to Group Policy

You try to run Windows Update and get an error like "Authentication failed" or "0x80070005" – and...

Fix Task Scheduler Path Not Found Error (Code 0x80070002)

When you run a scheduled task in Windows and get a "path not found" error (code 0x80070002), the ...

Fixing Outlook High Memory Use from a Large Mailbox

If Outlook slows down, consumes excessive RAM (over 1 GB), or crashes, a large mailbox is often t...

Fix Windows Terminal Module Not Found Error

If you see a 'Module not found' error in Windows Terminal, it usually means a PowerShell or WSL p...