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

Microsoft Store Not Opening: Step-by-Step Troubleshooting Checklist

When you click the Microsoft Store icon and nothing happens—no window, no error, just silence—it'...

Fix Windows Defender Version Mismatch Not Updating

If Windows Defender shows a version mismatch and refuses to update, you might see errors like "Yo...

Fix 'Windows Security Authentication Failed' for Domain Credentials

How to Fix Remote Desktop Permission Denied Error

You try to connect to a remote PC via Remote Desktop (RDP) and get a "permission denied" or "acce...

Fix Command Prompt Auto Start Not Working in Windows 11

You set Command Prompt to run automatically via Startup folder, Task Scheduler, or Registry – but...

How to Troubleshoot PowerShell 404 Not Found Errors

When PowerShell shows a 404 Not Found error, it usually means the system cannot locate a file, mo...