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

Fix Windows Security Error 404 After Update

After a recent Windows update, you might see an error 404 when opening Windows Security. The app ...

PowerShell Missing After Windows Update – How to Fix

After installing a Windows update, you may find that PowerShell no longer appears in the Start me...

Fix Chrome ERR_TUNNEL_CONNECTION_FAILED When Using VPN

Remote Desktop Proxy Not Working After Update: Fixes

After a recent system update, you might find that your remote desktop client can no longer connec...

Windows Security Stuck Loading: Practical Fix Checklist

Windows Security (formerly Windows Defender Security Center) sometimes gets stuck on a loading sc...

How to Fix Chrome Profile Corruption with Built-in Repair Tools

If Chrome starts showing error messages like "Your profile could not be opened correctly" or cras...