How do I give an unallocated space to a drive?

To allocate the unallocated space as a usable hard drive in Windows, follow these steps:

1. Open the Disk Management console. …
2. Right-click the unallocated volume.
3. Choose New Simple Volume from the shortcut menu. …
4. Click the Next button.
5. Set the size of the new volume by using the Simple Volume Size in the MB text box.