1) Launch the disk management tool via Start Orb >> “Search programs and files” >> then type in diskmgmt.msc
2) Once it opens right-click on the drive you want to partition and then choose Shrink Volume
3) It will query for the available disk space and then you will then be presented with a window showing you the Size of the Hard drive and the total amount available to Shrink. Enter in the amount you would like to shrink. This will be the size of the new partition. It can’t be more than the amount available to you and remember that Approx 1000 Mb = 1 GB

4) Once you have entered the values to shrink, click on Shrink and when completed, you will see an unallocated space which is the size you just shrunk the volume by. Select it and right click and then select New Simple Volume

5) Assign a drive letter and then on the Format page, Ensure NTFS is selected and then enter a name for your drive and click Next followed by Finish
Windows
windows