You might reinstall Steam to the main OS and move game folders to a secondary Steam library. Is the OS really necessary on the backup drive? You can remove it if you don’t need it. Remember to reinstall any programs that were there before.
You might reinstall Steam to the main OS and move game folders to a secondary Steam library. Is the OS really necessary on the backup drive? You can remove it if you don’t need it. Remember to reinstall any programs that were there before.