Fix Windows Defender 404 Not Found After Update
After installing a recent Windows update, some users find that Windows Defender is missing or sho...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix 'Access Denied' to an Outlook Mailbox Folder
You try to open a folder in Outlook—Inbox, Sent Items, or a custom folder—and get an “Access Deni...
How to Fix Windows Search DNS Error
If Windows Search returns no results or shows a DNS-related error, it's often due to network misc...
Chrome Profile Not Loading After Update: How to Fix
After a Chrome update, you might see an error message like "Your profile could not be opened corr...
Fix Microsoft Teams Stuck on Loading After Update
After a recent update, Microsoft Teams may get stuck on the loading screen. This typically happen...
Windows Security Not Scanning for Viruses: How to Fix
If Windows Security (formerly Windows Defender) is not scanning for viruses, you may see an error...
Topic paths
Quick titles
Brave Sync Not Working? Try This ChecklistHow to Fix Chrome Connection Timeout Error CodeFix Docker Container Restart Loop After CrashSet Task Scheduler to Wait for NetworkWindows Update SSL Certificate Setup GuideFix Windows Defender Invalid Configuration After UpdatePowerShell Service Unavailable: Causes and SolutionsFix Command Prompt Sync Issue with System Clock