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

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

How to Fix Microsoft Store 'Port Already Allocated' Error

If you see "Port already allocated" when opening Microsoft Store, it usually mea...

Fix Microsoft Teams Connection Timeout and Permission Denied

If you see "connection timeout" or "permission denied" when launching Microsoft Teams, the app ca...

Fix Ubuntu Task Scheduler Not Working After Update

After a system update, you may find that scheduled tasks (cron jobs or systemd timers) no longer ...

Fix Windows Security Connection Refused Due to Firewall Settings

When Windows Security shows a 'connection refused' error, it often means the Windows Defender Fir...

How to Fix PowerShell Execution Policy Restricted on Windows 11

You try to run a PowerShell script on Windows 11 and get an error like "running scripts is di...