How to Fix Windows Security Certificate Error Not Trusted
You're browsing or running an app and Windows throws a security warning: the certificate is not t...
Software troubleshooting desk
Practical fixes for tool errors, setup blocks, and workflow issues.
Symptom
Cause
Fix route
Verify
Fresh repair notes
All notesFix Windows Security High CPU Usage After Update
After a Windows update, you might notice the Windows Security process (Antimalware Service Execut...
How to Fix Command Prompt High CPU and Memory Usage
You open Task Manager and see Command Prompt (cmd.exe) consuming a large percentage of CPU or a l...
Fix Windows Defender 'Cannot Connect, Permission Denied' Error
When you see 'Cannot connect, permission denied' in Windows Defender Security Center, it usually ...
Fix Windows Search Invalid Configuration Registry Error
If Windows Search stops working and you see an error about invalid configuration in the registry,...
Fix Windows Security Service Not Starting Error
You click the Windows Security icon, but it doesn't open. Or you see an error saying the service ...
Issue queue
SitemapChrome Extension Migration Failed After Update
Fix Windows Defender Not Opening on Windows 11
Microsoft Store SSL Certificate Error Fix
Best Outlook Settings for Speed
Windows Search Indexing Stuck on Paused
Outlook Command Not Found on Mac: How to Fix
How to Fix 504 Gateway Timeout After Windows Update
OneDrive High CPU After Update Fix
How to Fix Command Prompt 504 Gateway Timeout Error
Resolving DNS_PROBE_FINISHED_BAD_CONFIG on Windows and Mac
Fix 'cmd service unavailable permission denied' on Windows
Windows Task Scheduler for Automatic Updates Setup
Fix Windows Defender Not Opening on Windows 11
Microsoft Store SSL Certificate Error Fix
Best Outlook Settings for Speed
Windows Search Indexing Stuck on Paused
Outlook Command Not Found on Mac: How to Fix
How to Fix 504 Gateway Timeout After Windows Update
OneDrive High CPU After Update Fix
How to Fix Command Prompt 504 Gateway Timeout Error
Resolving DNS_PROBE_FINISHED_BAD_CONFIG on Windows and Mac
Fix 'cmd service unavailable permission denied' on Windows
Windows Task Scheduler for Automatic Updates Setup