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

Fix Remote Desktop Blank Screen or Stuck Loading

You connect to a remote machine via RDP, see the initial login screen, but then the session goes ...

How to Check Which Process Is Using a Port in PowerShell

When a service fails to start or an application complains that a port is already in use, you need...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Fix Chrome Update Error 0x80070002 on Windows 7

When updating Google Chrome on Windows 7, you might see error code 0x80070002. This usually means...

Fix Windows Activation Server Timeout Error 0x80072efd

When you see error 0x80072efd while trying to activate Windows, it usually means your computer co...

Fix Windows Activation slmgr Access Denied Error

When you try to activate Windows using slmgr.vbs commands, you might see an ...