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

Fix CMD Service Unavailable Due to Group Policy

Situation

You open Command Prompt and see an error like "Command Prompt has been disabled...

Windows Defender Stuck Loading: Reinstall Steps

Windows Defender (now Microsoft Defender) sometimes hangs on a loading screen, especially after a...

Firefox Not Responding While Other Browsers Work: Fix

If Firefox is unresponsive—freezing, crashing, or not loading pages—but other browsers like Chrom...

How to Fix BitLocker 502 Bad Gateway Configuration Error

When you see a 502 Bad Gateway error while configuring BitLocker, it usually mea...

Fix DNS Client Service Not Running in Command Prompt

When you run commands like ipconfig /flushdns or ipconfig /registerdns ...

Fix 'Git Push Rejected Non-Fast-Forward' Error

You try to push your local commits to a remote branch and Git stops you with: ! [rejected]<...