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 Teams Error 429 (Rate Limit)
You're working in Microsoft Teams and suddenly see error 429: “You have been rate limited. Please...
Chrome SSL Protocol Error Troubleshooting Guide
You open Chrome, try to visit a secure site, and see an error like ERR_SSL_PROTOCOL_ERROR
Fix Microsoft Store Error 0x80073cf6: Port Already Allocated
When installing or updating apps from the Microsoft Store, error 0x80073cf6 often appears with a ...
BitLocker Version Mismatch: Fix 'Permission Denied' Errors
When you plug in a BitLocker-encrypted drive and try to unlock it, you might see a 'permission de...
Windows Security App Not Opening After Update: Fixes
After a Windows update, the Security app may refuse to open—clicking the icon does nothing, or it...
Topic paths
Quick titles
How to Find and Read Windows Activation LogsFix Windows Defender Real-Time Protection Permission DeniedNVM Not Recognized Windows 10 FixHow to Reset Chrome to Fix Pop-Up Blocker ProblemsOneDrive Sync Queue Troubleshooting GuideTroubleshooting Error 0x80004005 in Windows SearchOpenVPN Connection Failed Exit Code 1: Practical FixesTroubleshooting Git 'Repository Not Found' Error