New
#11
Yes. I'm sorry, I misread your OP. I thought you stated you powered off the computer while installing Windows. However, that being said, booting from the Windows installation media will only let you do a clean install, it won't let you do an upgrade or a repair install. If you have a data partition separate from the OS (like a D: drive), you can delete all the partitions except for your data partition and do a clean install to the unallocated space. Any partition you delete will be erased, yes.