Fix Windows Defender Proxy Error: Permission Denied
You try to update Windows Defender or run a scan and get an error like "Permission denied"
Software comparisons, alternatives, and tool decision notes.
Fit
Decision
Migration
Latest comparisons
Browse labFix Command Prompt Crashing After Windows Update
After a recent Windows update, you might find that Command Prompt opens briefly and then closes i...
Fix Command Prompt Service Unavailable Error
When you open Command Prompt and see 'Service unavailable' or 'The requested service is unavailab...
Fix PowerShell Port Already Allocated Error with Firewall
When you see a 'port already allocated' error in PowerShell while trying to set up a listener or ...
Windows Defender Not Opening? Here's How to Fix It
You click the Windows Defender icon, but nothing happens—or you get an error saying the app didn'...
Fix PowerShell Offline Installer Error 0x800f081f
When installing PowerShell using an offline installer, you may encounter error 0x800f081f. This t...