Fix Windows Security Service Not Running for Antivirus
If Windows Security shows 'Service not running' or your antivirus isn't working, the underlying s...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Windows Search Authentication Failed in Windows 11
If you see an 'authentication failed' error when using Windows Search in Windows 11, the search i...
Fix Windows Activation Blocked by Firewall
When Windows can't activate, one common culprit is the firewall blocking the connection to Micros...
Fix Microsoft Store Token Expired Error on Windows 11
You open Microsoft Store on Windows 11 and see a message like "Token expired" or "Something went ...
How to Fix Windows Terminal Not Responding
Windows Terminal can stop responding for a few reasons. You might see a frozen window, a blank sc...
Fix Windows Update Error 0x800f0905 on Mac
When running Windows on a Mac—either through Boot Camp or a virtual machine—you might encounter u...
Topic paths
Quick titles
Fix 'Access Denied' Error When Using Net User in Command PromptWindows 10 DNS Search Error GuideTeams Throttling Error: Causes and SolutionsOutlook Hangs on Startup After Windows 10 UpdateFix Slow PC by Clearing Windows Update CacheOneDrive Offline Installer Not Working? Try These FixesNetwork Error 0x800704cf in Windows Security FixPowerShell 404 Error: Causes and Fixes