|"Be aware that all the files on the partition will be deleted when you format."|
.....including everything you have added to the partition Windows is on since Windows was last loaded.
Formatting the Windows partition without backing up what you do not want to lose on the partition Windows is on is very short sighted.
Whatever problems you were having, they can probably be fixed without you having to to that, and that may take less time in total than you re-installing Windows, having to load the drivers you need, loading all the programs you want to use, and updating Windows, to get the computer back to the way you want it.