In Disk Management, we can select an unallocated space and then make use of the New Simple Volume feature to create new partitions. However, in some cases, this feature is greyed out as shown in the picture below, making us unable to create partition on unallocated space Windows 7/8/10. Similar to extend volume in the Disk Management, you can use it to extend the current partitions with unallocated space, it has two options, namely, "Add unused space to all partitions" or "Manually adjust partition size". Just select one between them and then start clone, then it will automatically resize the partition size of target disk User can extend specified partition by taking free space from other partition on the same disk. I have no idea why it shows the 230gb unallocated in the dropdown, it is contrary to the wording of the message.. You could extend C to incorporate that 70.6gb unallocated space. When it is inside partition C it becomes free space. Put the mouse on the partition and drag it to the left or right to move the unallocated space. You can repeat Step 1 and 2 to move the unallocated space to the desired location. Step 3. Click "Execute Task" and "Apply", it will execute the operations to add the unallocated space into the target partition eventually. 2. When installing Windows 10, you may encounter the problem that Windows can't be installed on this drive (Drive 0 Unallocated Space), the possible reason is that the disk has not been partitioned. To fix this, you can try clicking the "New" option to create a partition. While it's possible to extend the system partition using Windows Disk Management tool, there must be some unallocated space right next to the system partition. If you don't have some unallocated space next to the system drive, Windows will not show extend volume option even if you have enough free space on another partition. .

unallocated space windows 10 cannot use