Windows Disk Management
Disk Management is a built-in utility in Windows system which has appeared since
Windows XP as a replacement for the fdisk command. It is used to manage hard disks
that installed on the computer as well as their associated partitions. You can
initialize disks, create volumes, etc through Disk Management and since Windows 7,
"Extend Volume" and "Shrink
Volume" have been added to this tool.
Using Disk Management extend volume
As time goes by, there may be less and less free space on your hard disk because of
the increment of data storage, especially for C drive. While the low capacity of C
drive can lead to slower running speed or even system crash. So what should you do
to solve such kind of problem? Apart from cleaning your computer, actually extending
volume or said partition is also an ideal method. But how to extend volume Disk
Management?
Please pay attention that you can only extend a volume with the
free or unallocated space adjacent to it in Disk Management and the
unallocated space must locate behind that volume!For
example,


But when you right click D drive in the same case, you will find this option is
greyed out.

Great limitations exist in Disk Management! What if there’s no unallocated space?
Some people consider shrinking another volume. The result is that "Shrink
Volume" only makes the unallocated space locate behind the volume you shrink.
Besides, you are not able to shrink a volume beyond the point where any unmovable
files are located. So a third-party freeware is recommended.
Extend volume with AOMEI Partition Assistant
AOMEI Partition Assistant is a free disk
management software which comes with a lot of powerful functions that enable you to
control hard disks and partitions easily. It supports Windows 7/8/10/XP/Vista. With
AOMEI, you don’t have to worry anymore when you meet the problems mentioned above.
Following steps will show you how to extend a volume easily.
Step 1: Install and launch AOMEI Partition Assistant. You may
get some free space via “Resize
Partition” first if there’s no unallocated space.
Step 2: Right click the volume you need to extend. Choose Merge
Partitions.

Step 3: Tick unallocated space and click OK.

Step 4: Click Apply to operate.

Compared with employing Disk Management to extend volume, hiring AOMEI Partition
Assistant can directly extend any volume with multiple unallocated space at one
time with AOMEI Partition Assistant as long as they are on the same disk. What’s
more, there won’t be any data loss during the process.