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

How to Clear Windows Terminal Cache and Reset Settings

Windows Terminal can sometimes behave oddly—profiles missing, colors wrong, or it won't start. Of...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

How to Bypass 502 Bad Gateway in PowerShell Script

When a PowerShell script hits a 502 Bad Gateway error from a web API or server, the script usuall...

Fix PowerShell Profile Causing Blank Screen at Startup

You open PowerShell, see a blank screen with no prompt, and the window appears frozen. This usual...

How to Enable Windows Defender in Windows 10

If you're seeing a warning that Windows Defender is turned off, or you can't access its settings,...

Windows Activation Product Key Not Accepted: Fixes That Work

You enter a valid Windows product key, but Windows says it's not accepted. This is frustrating, e...