Fix Windows Defender DNS Error 0x800704cf
You open Windows Defender and see error code 0x800704cf. This usually means Windows Defender can’...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Update Assistant Not Working on Mac
If you're running Windows on a Mac via Boot Camp, Parallels, or another virtual machine, the Wind...
PowerShell Script Shows Blank Window: Fixes That Work
You run a PowerShell script, but instead of output you get a blank window that might close immedi...
Fix SSL Certificate Errors in Windows Search
When Windows Search throws an SSL certificate error—often as 'The certificate is not valid' or 'A...
Fix Outlook Error 0x80040115: Service Unavailable
When Outlook shows error 0x80040115 and says the service is unavailable, it usually means the pro...
Fix High CPU Usage from Remote Desktop Display Settings
If you notice your computer's CPU usage spikes when you connect via Remote Desktop (RDP), the dis...
Issue queue
SitemapFix Windows Activation Errors with a Cache Reset Script
Windows Store App Downloads Not Starting – Fixes That Work
BitLocker High Memory vs CPU Usage: Diagnosis and Fixes
Fix Chrome ERR_CONNECTION_RESET After Update
How to Clear and Rebuild Task Scheduler Cache
How to Resolve Remote Desktop DNS Failure After Network Switch
OneDrive File Locked: Quick Troubleshooting Steps
Fix Visual Studio Installer Permission Denied Error
Troubleshoot Outlook Offline Installer Sync Problems
Windows Security 404 Not Found: Setup and Fix Guide
Microsoft Teams Not Working After Update: How to Fix
Fix 'Permission Denied' Error on Windows Update Log File
Windows Store App Downloads Not Starting – Fixes That Work
BitLocker High Memory vs CPU Usage: Diagnosis and Fixes
Fix Chrome ERR_CONNECTION_RESET After Update
How to Clear and Rebuild Task Scheduler Cache
How to Resolve Remote Desktop DNS Failure After Network Switch
OneDrive File Locked: Quick Troubleshooting Steps
Fix Visual Studio Installer Permission Denied Error
Troubleshoot Outlook Offline Installer Sync Problems
Windows Security 404 Not Found: Setup and Fix Guide
Microsoft Teams Not Working After Update: How to Fix
Fix 'Permission Denied' Error on Windows Update Log File