Now you have unallocated space in primary partition now, or free space in extended partition. Enter the amount of size to shrink in MB: ***MB and click Shrink.Right- click one big size partition, select Shrink Volume.If you don't have unallocated space, follow the steps below: When a new window pops up, it means you succeed, this window is file explorer of the volume you created. Confirm Simple Volume size, assign drive letter, format volume with file system, allocate unit size (cluster size), Volume label, and perform a quick format, Finish.

Right-click on unallocated space and select New Simple Volume follow New Simple Volume Wizard.

Press Windows bottom and type disk management in search box to open Disk Management.

Steps of creating a new partition in Windows 10 Disk Management: We'll guide you how to do it without data loss in this page. If you have unallocated space on your hard drive, it's ok to create partition with it without data loss, but if you have no such space available, you have to split exist partition into partitions, in Windows 10 Disk Management, Delete Volume is the function you shall use, which will not keep data when operating. How to partition hard drive in disk management? Can we partition it without data loss? I heard that you had to format hard drive to create new volume, can we do partition it without data loss? ' 'After installing Windows 10, we need to partition hard drive in Disk Management to distribute more free space for Windows 10 future use.

Add a new drive to windows 10