How to Fix OpenVPN Certificate Verification Failed
You see "certificate verification failed" when connecting to an OpenVPN server. This usually mean...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix Chrome Can't Connect to Network on Windows 10
If Chrome says it can't connect to the network but other browsers work, the issue is usually Chro...
Fix Remote Desktop 'File Locked Permission Denied' Error
When you try to open or edit a file over Remote Desktop (RDP) and get a 'file locked permission d...
Fix Windows Security High Memory Usage
If you notice that Windows Security (formerly Windows Defender) is using a lot of memory—sometime...
How to Fix Windows Defender High CPU Usage
If your system feels sluggish and Task Manager shows Windows Defender (Antimalware Service Execut...
How to Fix Windows Update Error 0x80070002 Due to Network Issues
If you see error 0x80070002 when checking for updates, and your network connection seems unstable...
Topic paths
Quick titles
Ubuntu Windows Security Installation GuideOneDrive 0x80070005 Fix for Proxy and PermissionsFix Windows Activation Error 0xc004c003: Invalid Product KeyTroubleshoot OneDrive Sync Failure: Firewall and Network IssuesWindows Security Alternative for Mac: Practical Setup GuideFix OneDrive Sync Port Already Allocated ErrorYarn Install Timeout Fix: Complete Troubleshooting GuideWindows 10 Remote Desktop Access Denied Fix