XP Service Pack 2 Installation problems

[Rick]

I'll try to be brief. Recently had XP Home with Service Pack 2. Had some
problems with USB in course of solving it (with help) removed SP 2 and
reinstalled XP Home.
USB fine. When try to install SP 2, it copies files OK then hangs whenever
it checks for 'neccessary disk space'. In Task Manager, when this is
happening the processor is wiorking at 100% constantly.
In case it is relevant, Windows Explorer does not show status bar any more
by default - I have to show it every time I start up, sometimes when using
Windows Explorer, a 'preparing to install' box shows up briefly and then
disappears with no apparent effect.
Anyone got any ideas please ?
Thanks
Rick

 

[Mark L. Ferguson]

885626 - Your computer stops responding when you restart to complete the
installation of Window:
http://support.microsoft.com/default.aspx?scid=kb;en-us;885626&Product=winxp