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

How to Fix Windows Defender Not Starting Automatically

If Windows Defender (Microsoft Defender Antivirus) isn't starting automatically when you boot you...

Windows Search Access Denied: Complete Troubleshooting Checklist

You search for a file or email in Windows, and instead of results you get an 'Access Denied' mess...

Fix Windows Search Access Denied for Administrator Account

Why You See 'Access Denied' as Administrator

You're logged in as an administrator, but Wi...

Fix Microsoft Store Blank Screen on Windows 11

If you open the Microsoft Store on Windows 11 and see nothing but a white or gray screen, the app...

Fix Outlook 404 Not Found Error in Microsoft 365

You open Outlook in Microsoft 365 and see a '404 Not Found' page. This usually means Outlook can'...

Fix Docker Build: Repository Does Not Exist or Requires Login

You run docker build and get an error like failed to solve: repository does no...