Create New Partition w/o formatting the Hard disk

Right Click on My Computer 

Click Manage 

Now “Computer Management” window will appear.

In that window Click Storage 

Then select Disk Management.

In that window Hard-disk and other Storage Media detail will be shown.

Now select a Disk drive to create a New Partition.

Right Click on particular Drive then Click Shrink Volume. 

Now windows will show the free space in particular partition.

Type the disk size to create New Partition in Shrink Window.

Now click on “Shrink”, within few seconds a New Disk will be created.

Still Accessible is not done in New Disk.

Now Right Click on Unallocated Drive. Select New Simple Volume.

Click on Next. Now give a size to the New Partition. (you can choice whole size right now)

Select a Drive letter and Click on Next.

Then select Format Setting ->File System -> NTFS. And keep others as default. (if you need you can change this)

Put a tick on “Performances a Quick Format” and Click on Next.

Now the New Partition is created successfully.