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

Fix Microsoft Store 'Port Already Allocated' Error via Firewall

When launching the Microsoft Store, you may see an error like 'Port already allocated' o...

How to Fix Windows Security Service Unavailable

When Windows Security shows "Service unavailable" or a red banner, your antivirus and firewall pr...

How to Fix Chrome SSL Certificate Error After Update

Fix Windows Defender Service Not Starting Error

If you see an error that Windows Defender won't start—or the service stops immediately—it's usual...

Fix Module Not Found Error in Command Prompt

If you're seeing 'module not found' in Command Prompt, it usually means the system can't locate t...

Fix Windows Search Stuck Loading After Reboot

After a reboot, you click the search bar or open Start and see “Search is loading…” or a spinning...