No Boot Loader/ Can't Select OS To Boot, Hangs On Blinking Underscore?

Sep 9, 2009

i have ONE hard drive with partitions. I had a really bad setup first, I had 1 partition with 3 windows installs on it, folders like WINDOWS, WINPRO, WINN, I never took the time to delete them or whatever, and I was using winpro as my main OS. When I was running the above setup, when I boot up it would ask me: Select what OS to load Windows Pro, Windows Home, Windows Home

I decieded to install Windows 7 Ultimate 64 bit, worked flawlessy, but I wanted to go back to windows xp pro 64 bit. So I made a new partition and installed windows XP pro 64 bit onto it. when I tried installing windows xp with my CD, the first part would work fine, but then when it restarted to continue the setup, it would load my MOBO logo and then after, it would just show a blinking underscore "_" on the top left corner, and nothing else.

I managed to install a fresh windows xp from my USB flash drive, but when booting up normally it still does not let me select what OS to log on to, it just shows the blinking underscore in the top left after the MOBO logo passes, I actually have to boot by USB drive to boot this fresh install of windows. I think something is wrong with my boot loader, but have no idea how to fix it.

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