Generally, if an operating system is that slow loading, then it is having trouble with some hardware device. Case in point. A machine that I tried loading the operating system on would get to the same point and hang just as you described. I found that the CD was acting up and when I substituted another CD, the operating system would load. Another time, I had the same problem and it turned out to be the memory. I would suggest that you disable any device not necessary for booting up and try it again. This could have been the problem of it running slow before you decided to re-install.
my friend asked me to fix his pc becuase it was running really slowly, my first thought was spyware, so I told him to bring it to me and the disks that came with it.
here are the system specs
dell dimension 4800
256 mb pc 2700 memory
western digital 80g HD
i tried to bood the pc but after displaying the windows xp logo for about 20 minutes i turned it off, removed the HD, and backed up all the files on it, then put the HD back, and tried to reinstall the os, went fine till it got to the part where it details what part of the installation is happening, at this point it said it had 39 mintues left, an hour and a half later it still said that.
first i debugged the HD,
then i installed a new HD and tried again
then i took out the memory sticks one at a time to see if maybe one of them was causing the problem,
also tried setting the jumper to both master and cable select on two different hard drives.
no matter what i tried it always gets to the point where it says installation will complete in 39 minutes, and it stays there, I let it run the other night while i slept, when i woke 10 hours later, it said installation will complete in 19 minutes.
any help would be greatly appreciated