Question : Does any one know how can I make partition from HP7700 Small form factor?I tried do the way from disk management but mostof the option greyed ,only properties is active .

Does any one know how can I make multiple partition (e.g C: drive and D: drive) in HDD of HP7700 Small form factor Computer?I tried do the way from disk management but most of the option greyed ,only properties option is active .Because it is a HP computer I have to follow HP installation CDand its installation way. But anywhere in installation steps its not giving me any option for make multiple drive.

Answer : Does any one know how can I make partition from HP7700 Small form factor?I tried do the way from disk management but mostof the option greyed ,only properties is active .

if the OS is already installed, i suggest to use Bootit-ng (free for what you want)  :
 Download the demo version of Boot-It NG from   www.terabyteunlimited.com/       then :
As always, it is best to have a backup before doing disk operations.

here the instructions for 2 partitions :
Resize C: to free up some space
Now  make the D: partition
More detail :
- download Boot-It and create a bootable CD (or floppy if you have a floppy drive).
- Boot to Boot-It; select CANCEL at the first prompt; then OK.   Then click on Partition Work ... you'll see the partition on the disk

Original layout:   CCCCCCCCCCCCCCC       ( (where the C's represent C: partition)
resize it, to make free space : click resize, put in the size you want  the C: to be

New  layout 1 :    CCCCCCCCCCooooo      <--ooo =  free space
now select Create Partition to make a D: partition in the free space

done !