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

Fix Command Prompt High CPU Usage on Windows 7

If you notice your Windows 7 system slowing down and Task Manager shows cmd.exe using high CPU, i...

Fix Windows Activation Cannot Connect to Server Error

When you try to activate Windows and see the error "We can't activate Windows because we can't co...

How to Fix 502 Bad Gateway in Command Prompt

If you see a 502 Bad Gateway error while using command prompt—for instance when ...

How to Fix WSL Ubuntu No Internet Access

If your WSL Ubuntu instance has no internet access, you're not alone. This usually happens after ...

Fix SSH Permission Denied (publickey) on Raspberry Pi