1. Check the Windows 11 System Requirements: The most common issue when installing or running Windows 11 is not meeting the system requirements. Make sure your computer meets all the requirements before attempting to install or run Windows 11.
2. Update Drivers: Make sure you have the latest graphics, sound and network drivers installed on your system. This can increase compatibility and help prevent errors.
3. Check for viruses and malware: Run a full scan of your system with an anti-virus program and scan for malware. Remove any malicious files that are found.
4. Update Windows: Apply any available updates for Windows 11. This will help fix any known bugs and security issues and also improve performance.
5. Reinstall Windows 11: If all else fails, reinstalling Windows 11 is the last resort. Make sure to back up all important data and documents before proceeding.