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

Fix KMS Activation Error: Port 1688 Already in Use

Fix Windows Update Error 0x80070643 Installation Failed

You see error 0x80070643 when trying to install a Windows update, and the setup fails partway thr...

Windows Terminal Rate Limit Error: Troubleshooting Checklist

If you see a rate limit error in Windows Terminal, it usually means the terminal is sending too m...

Chrome Profile Sync Not Working After Migration: Fixes

After migrating Chrome to a new computer or reinstalling the browser, sync may stop working. Book...

Fix Microsoft Store Connection Refused by Firewall

If you see "connection refused" when opening Microsoft Store, your firewall or network settings a...

Fix Windows Update Proxy Error via Group Policy

When Windows Update fails with a proxy error, it often means the system's proxy settings are misc...