How to Fix Windows Defender Service Not Running
If you see a message that Windows Defender is not running or the security center shows it's off, ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Set the PowerShell Module Path
When you install a custom PowerShell module or a third-party one, PowerShell needs to know where ...
Fix OneDrive Sync Error 0x8004de40 (SSL Certificate)
If you see error 0x8004de40 when syncing OneDrive, it usually means your computer cannot verify t...
How to Configure Windows Defender Firewall Settings for a Network
If you're having trouble with network connectivity or need to allow an app through the firewall, ...
BitLocker Authentication Failed: USB Key Not Recognized Fix
When BitLocker prompts "Authentication failed" and your USB key isn't recognized, the drive is lo...
How to Fix Telnet Connection Timeout Errors in Command Prompt
You run telnet in Command Prompt and get a connection timeout error. T...
Topic paths
Quick titles
Chrome YouTube CPU Spike FixCommand Prompt Fails to Start: Error 0xc0000142 FixResolve 'Permission Denied' When Windows Update Starts AutomaticallyFix Outlook High RAM After Windows 11 UpgradeMicrosoft Teams Stuck After Update Troubleshooting GuideWindows Command Prompt Startup TroubleshootingFix FFmpeg Audio Sync Issues: Step-by-StepReactivate Windows After Hardware Change: Best Settings