Unallocated space, also referred to as “free space,” is the area on a hard drive where new files can be stored. Conversely, allocated space is the area on a hard drive where files already reside.
Should I have unallocated space on hard drive?
First, the general answer "no", because the point at which the system slows down because of drive use, depends on the format, cache, and types of allocation being done. "Unallocated" means you do not have the drive partitioned to the full size of the drive.
How do I use unallocated hard drive space?
To allocate the unallocated space as a usable hard drive in Windows, follow these steps:
- Open the Disk Management console. ...
- Right-click the unallocated volume.
- Choose New Simple Volume from the shortcut menu. ...
- Click the Next button.
- Set the size of the new volume by using the Simple Volume Size in MB text box.
