Boot And Clean install problems

Aesiri

Honorable
Sep 19, 2012
7
0
10,510
Hello,
I recently bought a new Seagate 500gb bare drive, but when I tried to install Windows 7 with a disk, I received an error message stating that all the necessary files were not on the disc. Now, upon restart, I get a BOOTMGR is missing, and don't know what to do, because I don't have any USB drivers to work my keyboard.
 

Aesiri

Honorable
Sep 19, 2012
7
0
10,510


I'd really appreciate any help you guys could give.
Thanks a ton.