Fix Windows Defender Token Expired Preventing Service Start
You see 'Token expired' in the Windows Defender event log or a notification that the service didn...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix BitLocker Service Unavailable via Command Line
You see "BitLocker service unavailable" when trying to manage encryption. This usually means the ...
Fix Task Scheduler Not Responding After Windows Update
After a Windows update, you might find that Task Scheduler (taskschd.msc) won't open, hangs on la...
Fix Microsoft Teams SSL Certificate Error on Windows 10
You open Microsoft Teams on Windows 10 and see an error about an SSL certificate. The app may fai...
Fix Remote Desktop 502 Bad Gateway Proxy Issues
You're trying to connect to a remote desktop through a web proxy and you see a 502 Bad Gateway er...
Fix Windows Search SSL Certificate Error Configuration
If Windows Search stops working and you see an SSL certificate error in the event logs or search ...
Topic paths
Quick titles
Fix Microsoft Store Issues: A Step-by-Step ChecklistHow to Fix Access Denied in Windows Terminal When Opening FoldersHow to Fix Outlook Stuck on Loading ProfileOneDrive Sync Pending: File Name Too Long Fixnpm Missing After Node.js InstallationFix Defender Authentication Failed on Windows 10/11Troubleshoot Windows Security Credential Error on DomainOneDrive Ubuntu Permission Denied Troubleshooting