Fix Windows Defender Access Denied Error on Windows 11
You open Windows Security on Windows 11 and see 'Access Denied' or 'This app has been blocked by ...
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labHow to Fix Microsoft Store File Locked Error
If you see a 'file locked' error when trying to install or update an app from the Microsoft Store...
How to Fix Microsoft Store Proxy Server Errors
If you see a proxy server error when opening Microsoft Store, it usually means the app can't reac...
How to Force a Stuck Windows Update to Complete Installation
You click 'Check for updates' or restart your PC, but Windows Update sits on 'Pending install' fo...
How to Fix Outlook Authentication Failed Error
You open Outlook, try to send or receive email, and get an authentication failed error. The progr...
How to Reinstall Windows Defender in Windows 10
Windows Defender (now called Microsoft Defender Antivirus) is built into Windows 10 and typically...