Fix PowerShell Service Unavailable Error on Windows
You're running a PowerShell command and get a red error: "Service unavailable". ...
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listFix OneDrive Sync Fails with 504 Gateway Timeout Configuration
You start OneDrive sync and see a 504 Gateway Timeout error. This usually means the sync request ...
Command Prompt Service Unavailable: Troubleshooting Checklist
When you open Command Prompt and see 'Service unavailable' or 'The requested service is not avail...
How to Fix Command Prompt Rate Limit Error on Network
When you see a rate limit error in Command Prompt while using network tools like ping
Check If Your Windows License Is Retail or OEM
If you're troubleshooting activation issues or planning to transfer Windows to a new computer, kn...
BitLocker High CPU Usage: How to Diagnose and Fix
If your system is running slowly and Task Manager shows BitLocker-related processes consuming hig...
Topic paths
Quick titles
Windows Defender 502 Bad Gateway: Troubleshooting StepsHow to Resolve OneDrive Sync Error 0x8004de40Troubleshoot Corrupted Security Log in WindowsWindows Defender Performance Troubleshooting GuideTroubleshoot Outlook Access Denied Error on SendWindows 11 BitLocker Setup: Step-by-StepWindows 10 Activation Stuck at 0% Setup: How to FixHow to Fix 'Not Recognized' in CMD