Fix Windows Defender SSL Certificate Sync Errors
You might see a warning that Windows Defender can't update because of an SSL certificate error. T...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Search Service Not Running Error
When you see a message like “Windows Search service is not running” in the search box or in setti...
Fix Task Scheduler Error 0x80070020: Port Already in Use
When you see error 0x80070020 in Task Scheduler with the message "port already in use," it usuall...
Fix Edge Profile Sync Paused on Startup
If Microsoft Edge shows that profile sync is paused every time you start the browser, syncing boo...
How to Fix Outlook 502 Bad Gateway Error in Outlook 2019
If you see a '502 Bad Gateway' error in Outlook 2019, it usually means your email server or a pro...
Windows Defender Access Denied Troubleshooting Checklist
You try to open Windows Defender or run a scan and get an "Access Denied" message. This usually m...
Topic paths
Quick titles
How to Fix Apache Service Startup FailuresChrome Profile Conflict: How to RepairFix Windows Update Errors by Resetting ComponentsHow to Resolve Windows Activation Error 0x80070002Solving Windows Security Startup Issues After UpdatesFix Outlook Data File Cannot Be Accessed ErrorHow to Fix Chrome Blank Screen After OpeningTroubleshoot Windows Search Indexing for One Folder