How to divide partition for harddisk

Window corrupt always happen to your computer
and all your data gone
for safety, you can divide your harddisk to 2 drive
e.g C: and D:
then u can move your important data such as pictures and songs to D:
so even when your window is corrupted, you only need to format C:
and all your data still remain at D:
here's the step how to divide your harddisk to 2 or more partition
but this only applicable to window vista/7
window xp got another way to divide which is more complicated

Step 1:
Press the window button at bottom left of your window.
Then type 'Computer Management'
Select 'Computer Management'


Step 2:
Then select 'Disk management'
Wait for the loading around 30-45seconds
and this will appear


Step 3:
Select the drive that you want to divide.
Right click and select 'Shrink Volume'


Step 4:
Wait for the computer to calculate the space that available to shrink.


Step 5:
Enter the amount of space you want to divide in MB.
e.g you want the new drive to be 160GB, then you key in 160000


Step 6:
You will see a drive with 'Unallocated'.
Right click and select 'New Simple Volume'


Step 7:
You will come to this and select 'Next'


Step 8:
Select the drive letter for the drive.
e.g D:


Step 9:
Key in the space u want for this drive.
Just click 'Next' if you want use all the shrink volume on this drive.


Step 10:
Format this drive and change the label for this drive.
e.g DATA DRIVE


Step 11:
Finish!