How do I fix Steam has stopped working?

How to Fix Steam Not Responding on Your Computer

1. Clear Download Cache.
2. Update the Date and Time on Your Computer.
3. Update Device Graphics Driver.
4. Check File System for Your Hard Drive.
5. Disable Compatibility Mode.
6. Disable Cortana.
7. Disable VPN Programs.
8. Disable Real-time Scanning and Verify Integrity of Game File.