Doing that will not solve you issue. It will first change the drive letter from with in that 2nd OS not the primary one you are trying to change. IT will have no effect on that system at all. In fact you could damage it and make it un-usable.
As stated a format will be the only way to get it to be the C:\ drive. Sorry. I know that is not the answer people want but it is the only answer that is true. Installing a 2nd OS will not affect the first ones drive lettering.
As stated a format will be the only way to get it to be the C:\ drive. Sorry. I know that is not the answer people want but it is the only answer that is true. Installing a 2nd OS will not affect the first ones drive lettering.