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

Check If Your Windows License Is Retail or OEM

If you're troubleshooting activation issues or planning to transfer Windows to a new computer, kn...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Postman SSL Certificate Not Working After Update: Fixes

After a Postman update, you might see SSL certificate errors when making requests. This usually h...

Resolving PowerShell Version Mismatch in Automation Scripts

You're running an automation script and get an error about a cmdlet not being recognized, or a pa...

Fix Chrome Crashing on Startup in Safe Mode

If Chrome crashes immediately when you open it, and even safe mode doesn't help, you're dealing w...

Fix Windows Activation Port Already Allocated & Firewall Errors

When Windows activation fails with "port already allocated" or a firewall-related error, it usual...