Windows
Windows
You can partition your hard drive, install Windows on one side, and keep the other side for data. Then you can create a bootable installation from the other partition and use it to set up Windows there.
They could cost around ten dollars, but I’d prefer to use the computer this evening instead of waiting two days for delivery.
Curiously, it seemed like the system immediately deleted the target drive.
The program I used is named easybcd and it doesn't erase the whole disk when you choose specific partitions