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

Fix Windows Update Error 0x80070005: Permission Issues

When Windows Update fails with error 0x80070005, it usually means the update process doesn't have...

Fix Command Prompt High CPU Usage After Closing CMD

You close Command Prompt, but your CPU fan keeps spinning. Task Manager shows high CPU usage from...

Fix Windows Security 404 Not Found on Startup

When Windows Security shows a 404 error on startup, it typically means the app can't find its req...

Fix Windows Update Connection Refused When Using VPN

If you see a "connection refused" error when running Windows Update while connected to a VPN, it'...

Fix SSH Permission Denied (publickey) on Raspberry Pi