Fix Windows Defender Service Not Running
If you see "Windows Defender service not running" or a red warning in Security Center, the underl...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix VirtualBox Kernel Driver Not Installed Error
When you try to start a virtual machine in VirtualBox and see "Kernel driver not installed (rc=-1...
Fix Windows Defender DNS Error Configuration
If you see an error in Windows Defender that mentions DNS configuration, it usually means Windows...
Fix Windows Update 502 Bad Gateway Due to DNS Configuration
If you see a '502 Bad Gateway' error when running Windows Update, the problem is often on the net...
How to Enable Windows Search Auto Start When It's Disabled
If Windows Search stops starting automatically after a reboot, your file searches may become slow...
Windows Search Troubleshooting Checklist: Fix Common Issues
Windows Search can stop working for many reasons. You might see no results, slow searches, or hig...
Topic paths
Quick titles
Jupyter Kernel Stuck on Connecting: Troubleshooting GuideHow to Fix OneDrive Sign-In Blocked by FirewallFix 'File in Use' Error When Installing from Microsoft StoreHow to Fix Docker Build Failed to Solve with No Match for PlatformTroubleshoot Error Code 0x80070520 on WindowsHow to Fix Task Scheduler 404 Error in Windows 10Fix Windows Update Service Not Running on Windows 10/11Stop PowerShell Memory Leak After Exit