Fix 'ffmpeg command not found' in PHP exec()
When you call exec('ffmpeg ...') in PHP and get ffmpeg command not found
Checklists for software errors, setup, and tool workflows.
1. Reproduce
2. Isolate
3. Apply
4. Verify
Latest checklists
View listHow to Fix Microsoft Store Authentication Failed Error on Windows 10
When you see "Authentication failed" while trying to sign in to the Microsoft Store on Windows 10...
Fix Windows Terminal Not Working with VPN
If Windows Terminal stops working when your VPN is connected—freezing, failing to launch, or show...
How to Clear Task Scheduler Cache in Windows 10
If you're noticing tasks missing from Task Scheduler, tasks failing to run with generic errors, o...
How to Fix 'Outlook Service Unavailable Check Network Connection'
You're working in Outlook and suddenly see the message: "Outlook service unavailable. Check y...
Fix Windows Search Version Mismatch Not Finding Files
If Windows Search suddenly stops finding files after an update or upgrade, a version mismatch bet...
Topic paths
Quick titles
Fix Outlook Module Not Found Error 0x80040154Step-by-Step Command Prompt Setup GuideChrome 502 Error After Profile Reset FixFix 'Java JDK Not Recognized' After UpdateResolve Windows Security Permission DeniedTroubleshoot Windows Defender Real-Time Protection OffTroubleshooting OneDrive SSL Expired CertificateFix Task Scheduler Connection Timeout Due to Firewall