Hello. I was using EasyBCD 2.3 free and I ran into problems when I wanted to remove one of the hard drives. I had 2 hard drives on a computer: on one was Windows 7 and the other Windows 10. I needed to delete Windows 7 hard drive and use the hard drive for another project on another computer and keep windows 10 for that computer but I kept getting a message that the computer could not find the boot device when I removed the Windows 7 hard drive., even though Windows 10 remained. I installed EasyBCD 2.3 on the Windows 10 hard drive to delete the Windows 7 boot. Since I completely screwed everything, I was wondering what you are supposed to do to get rid of one of the operating system on an installed drive. I decided to do a BCD repair to start over for the Dual boot but now I can't even boot on Windows 10. So I gave up and decided to just reinstall Windows 10 again, since I see no way to get it to boot, unless someone has a suggestion. I would like for the future to know how to safely remove one of the hard drives in a dual boot setup. Any advice apreciated.