What do you mean cannot boot up? It got stuck at the black
screen?
If yer using WinXP and IT savvy, try this, (I can't remember
exactly but I did this something like this before)
1. Insert yer WinXP OS CD
2. Boot up from CD
3. Choose 'Repair' , and 'C drive' when asked
4. It should bring you to DOS prompt
5. You will be asked to enter your administrator login
6. Next, type HELP and enter
7. Look for something like "Repair restart" (duh, cant recall
already)
8. Boot up
Otherwise, you can just send to SimLim square for repair. I dealed
with this shop before, Dignity , 4th floor.
U can recover yer data (unless u dropped ur HDD) by removing ur
HDD, attach it to an external HDD casing with cables, and plug it
to other computer. This works just as an ext.HDD already.
Gud Luck!