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

Fix Windows Activation 502 Bad Gateway After Upgrade

After a Windows upgrade, you might see a '502 Bad Gateway' error when trying to activate. This us...

Fix PowerShell Connection Refused to Remote Server

You try to run Enter-PSSession or Invoke-Command to a remote server and...

Fix 'Remote Desktop Command Not Found' After Update

Fix Windows Defender Connection Refused After Update

After a recent Windows Update, you might see a "connection refused" error when trying to open Win...

Fix 502 Bad Gateway After Reboot in Command Prompt

If you see a 502 Bad Gateway error after rebooting your server or workstation, i...

Fix Windows Update Error 0x80070020: Port Already Allocated

When you see error 0x80070020 during a Windows Update, it usually means a program is already usin...