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

Fix Windows Activation Blocked by Firewall

If Windows activation fails with an error about a blocked firewall, your PC likely can't reach Mi...

Fix Outlook Stuck Loading Due to Corrupted PST File

If Outlook gets stuck on the loading screen (often showing 'Loading profile' or 'Opening Outlook'...

How to Break the Microsoft Store Login Loop

If you're stuck in a Microsoft Store login loop — where the app keeps asking you to sign in even ...

Activate Windows Without Product Key Using CMD

If you've installed Windows and don't have a product key handy, you can still activate it tempora...

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

Check Which Process Is Using a Port on Windows

When a service or application fails to start because a port is already in use, you need to identi...