Fixing 'Connection Refused' in Command Prompt Due to Firewall
If you see a 'connection refused' message in Command Prompt when trying to connect to a remote se...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Visual Studio Installer Stuck at Initializing
You launch the Visual Studio Installer, but it stays stuck on "Initializing" for minutes or forev...
How to Fix Remote Desktop Protocol Version Mismatch
You try to connect to a remote PC and get an error like “This computer can’t connect to the remot...
BitLocker Version Mismatch Troubleshooting Checklist
If you see an error like "The version of BitLocker on this drive is incompatible with this versio...
How to Fix Windows Security Auto Start Disabled
If you notice that Windows Security (formerly Windows Defender) isn't starting automatically with...
Fix Command Prompt Service Unavailable Error
When you open Command Prompt and see 'Service unavailable' or 'The requested service is unavailab...
Topic paths
Quick titles
How to Fix Windows Defender Service Not RunningStop 'Search Rate Limit Exceeded' in WindowsDefender Log Analysis: Step-by-Step TroubleshootingHow to Move Chrome Profile to New ComputerResolve Windows Search Access Denied Registry IssueOutlook Proxy Settings Reverting: Troubleshooting GuideHow to Resolve PowerShell Install Error 0x800f0950 on Windows 11How to Resolve Outlook Access Denied