trouble installing 7.4 LE on xp
 

I was having an issue with Protools 7.4 not loading up at all so I decided to do an uninstall and a reinstall. After I uninstalled when I tried to reinstall it would get stuck at the point where the dos command prompt would come up. I am a total loss here I am running xp service pack 3. Any help would be greatly appreciated. Thanks.