What are unallocated space and free space?

Both unallocated space and free space refer to computer storage. However, the former one is in initial state that can not be used directly and the latter one is ready for use. If you want to put an unallocated space into use, you should firstly create a new partition on it, and then you are expected to format the new partition.

How to convert unallocated space into free space?

How to convert unallocated space into free space? To make full use of disk space, this question is frequently asked by novices. In fact, there are two ways in summary – through windows disk manager or third party software like AOMEI Partition Assistant Standard.

By means of Windows Disk Manager

Windows disk manager is a system utility that helps to optimize the performance of disks. Firstly, you should know where you can find it. Right-click “Computer”, “Management”, and “Disk Management” just below the storage bar. Now you can see your hard disk division. To convert unallocated space into free space, right-click “Unallocated Space” and click “New Simple Volume”, and now go as the instruction. If you want to extend space of other drives, right click on the drive, click “Extend Volume” and do as instructions. But disk management only allows you to extend the drive that locates adjacently in the left of “unallocated space”. Below is the interface of Windows Disk Manager:


By means of AOMEI Partition Assistant Standard

AOMEI Partition Assistant Standard is a piece of free partition management software which devotes itself to provide basic partition management like create, merge, move, copy, format partition as well as other neat features. It can solve the narrow limitation that occurs under windows disk management, providing you a more flexible way to arrange your disks.


Download AOMEI Partition Assistant, install it on your computer and run it. There are two approaches for you to convert unallocated space into free space.

Create new partition

Steps: right-click Unallocated Space → Create Partition → specify the size → Apply

In this way you will get a new partition. This method is good for users who have lots of categories. It is recommended to format the new partition before you store any file into it.

Extend free space

Steps: right-click Unallocated Space → Merge Partitions → choose a target disk partition → Apply

In this way you will get an enlarged partition. It seems more effective to make full use of disk space and is suitable for users with large files. The prominent feature of AOMEI Partition Assistant in this aspect is that you do not need to worry about the location of the unallocated space any longer.

Easy isn’t it? Through AOMEI Partition Assistant, you will find arranging disks has never been so easy and effective. Now FREE download AOMEI Partition Assistant Standard and give a try!