Moving Windows startup files

Jan 15, 2019
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Could i use the fresh start option to re-install windows, on a single hard drive, and keep all my data? Background:
I have two hard drives, one 1TB and one 250GB drive. Windows placed the boot files on the 250GB hard drive and the rest of the OS on the 1TB drive. I accidentally had the 250 GB drive plugged in while installing windows.
 
Jan 15, 2019
60
1
45
I would like to use the 1TB for OS, games etc. Because the 250GB is around 10 years old, i want to make it so i can run windows and play/store games, with only the 1TB drive. I am looking to get rid of the 250 GB drive. Or use it for extra storage, should i ever fill my 1TB drive