ScanDisk and Defrag won't work

I have been trying to run scandisk and defrag on my computer but neither of
them are able to complete or even make much progress at all. With scandisk i
keep getting the error message that it has restarted more than 10 times. With
the defrag the status monitor doesn't move from 0% completed. I tried
restarting my comp in safe mode but i couldn't get that to work either. I
tried it twice; once holding down the ctrl key and the other time by holding
down the F8 key. Is there another way to restart the comp in safe mode? Would
it be better to do the scandisk and defrag in MS DOS mode? If so, once i'm in
ms dos, how do i get back to windows (or just shut the computer down from ms
dos)? I've barely ever used ms dos so i am almost completely ignorant about
it. Is this even the correct place to be asking these types of Windows
questions??? aarrrrgggggg!!

I'm having a similar issue with windows xp SP2 defrag quit working after I
installed Windows Live Messenger I get not all files could be defragmented
see report for details and the report is black this issue crashes Windows
live one care too. WLOC can't complete defragging not all fragmented files
were defragmented. and that sums that up.

<DIV>&quot;Auriga&quot; &lt;&gt; wrote in
message news37ABE13-E77D-4FD7-819F-...</DIV>>I
have been trying to run scandisk and defrag on my computer but neither of
> them are able to complete or even make much progress at all. With scandisk
> i
> keep getting the error message that it has restarted more than 10 times.
> With
> the defrag the status monitor doesn't move from 0% completed. I tried
> restarting my comp in safe mode but i couldn't get that to work either. I
> tried it twice; once holding down the ctrl key and the other time by
> holding
> down the F8 key. Is there another way to restart the comp in safe mode?
> Would
> it be better to do the scandisk and defrag in MS DOS mode? If so, once i'm
> in
> ms dos, how do i get back to windows (or just shut the computer down from
> ms
> dos)? I've barely ever used ms dos so i am almost completely ignorant
> about
> it. Is this even the correct place to be asking these types of Windows
> questions??? aarrrrgggggg!!