Fix Windows Defender Connection Refused Error 0x80070005
When you open Windows Defender (Microsoft Defender Antivirus) and see a connection refused error ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listOneDrive Sync Troubleshooting: Fix Common Issues
OneDrive sync problems usually show up as a stuck status, error icons, or files not updating. Thi...
How to Fix Chrome Error 12 Update Stuck
If Chrome shows error 12 during an update and the process gets stuck, the update files are likely...
Fix Microsoft Store Not Working After Windows Update
After a Windows update, you might find that the Microsoft Store won't open, apps fail to download...
Fix Windows Terminal Slow on Windows 11
If Windows Terminal feels sluggish on Windows 11—slow to open, laggy typing, or delayed command o...
Fix Windows Defender 504 Gateway Timeout & Permission Denied Errors
You open Windows Defender Security Center and see "504 Gateway Timeout" or "Permission Denied" er...
Topic paths
Quick titles
Bootable USB Troubleshooting for Windows Blank ScreenWindows Search High CPU Fix and Service Not RespondingHow to Fix Windows Update Error 0x80073712 StuckWindows Search Port 80 Conflict – Troubleshooting GuideHow to Recover Chrome Bookmarks Using Backup FilesTroubleshoot Windows Security Offline Install ErrorsWindows 10 Chrome Installation and Configuration GuideResolve Chrome File Locked on Deletion