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

Fix MongoDB Authentication Failed: Database Mismatch

When you see Authentication failed in MongoDB along with a message about database mi...

How to Clear SSH Known Hosts and Fix Host Key Verification Failed

Task Scheduler Backup Troubleshooting: Step-by-Step Fixes

When a scheduled backup fails, you might see errors like 'The task did not run' or 'Access is den...

Fix PowerShell Remote Connection Refused Error

Fix PowerShell 404 Not Found on GET Requests

When you run a PowerShell Invoke-RestMethod or Invoke-WebRequest with t...

Windows Security App Not Working After Update: Fixes

After a Windows update, the Windows Security app may fail to open, show a blank screen, or displa...