If your Drive shows unknow partition:

I f your Drive shows unknow partition:

follow the steps:

Method 1

1. start
2. run and type
3. chkdsk space driver letter space /r
4. for example chkdsk d: /r
5. select the driver letter which its showing unknow drive. it runs and scan in five stages....
6. after completing reboot your system..

Method 2

This method is used for c: dirve when u r computer restart's or unknow partition

1. Keep xp bootable cd in u r driver boot with cd.
2. And select first " r " for recovery console.
3. It shows command promt screen.there it ask to select the no. select 1 and enter.. after that
enter in command promt screen.
4. By default it shows c:// drive
5. At c: driver you have to type d: and press enter.
6. It enter in to d:
7. Then you to have type at d: chkdsk c: /r
8. It runs in 5 stages it takes 30 min to compete.
9. Reboot your system