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

How to Reactivate an Expired Windows License

If you see a "Windows license expired" or "Windows activation required" watermark, your copy of W...

Fix PowerShell Proxy Authentication Failed Errors

How to Fix Command Prompt Keeps Crashing in Windows 10

If Command Prompt opens and then immediately closes, or crashes randomly while you're using it, y...

Fix Microsoft Teams 502 Bad Gateway Due to Network Config

You open Microsoft Teams and see a 502 Bad Gateway error. This usually means you...

Fix Putty Connection Refused Due to Windows Firewall

You're trying to SSH into a remote server using Putty, but you get a 'Connection refused' error. ...

How to Fix BitLocker Pre-Boot Authentication Not Working

You enter your PIN or password at boot, but BitLocker skips the prompt and boots directly to Wind...