New
#11
At this point I'd just take the drive out of the computer, temporarily install it in another computer (or use a USB enclosure so you don't have to physically install it into another computer), and copy all of your important files to the other computer. Once you have everything backed up, install the drive back into the original computer and install Windows again. When you install Windows, make sure you select custom install, and then format the partition where you have Windows.