By AOMEI / Last Updated July 26, 2017

My Windows 8 hard drive has been partitioned into two drives, partition C 30GB, and partition D 220GB. Because of the installment of operating system in partition C, it hardly has free space to install other programs. Is there a solution that can extend partition C without moving any files? Because if some of the programs were moved to other place, they will not work.

Have you ever come across the same situation? This problem is annoying, because it prevent you from updating or installing some other programs. What's worse, the operation speed of the computer becomes slowly simultaneously.

Even though built-in Disk Management in Windows 8 has the functions of extend and shrink volume, but the feature of extend volume can not be used unless there is an unallocated space just right behind the partition you want to extend. Therefore, you can not extend partition C by shrinking partition D, since it comes out that the unallocated space locates right besides partition D instead of partition C. However, you can reach your goal by deleting partition D, which will cost you a lot of time to backup and restore files on partition D if there are so much data.

As a magic tool in disk partition, AOMEI Partition Assistant is of easy accessibility among all the partition manage software. You can change partition size Windows 8 by making use of its helpful functions, either "Resize Partition" or "Allocate Free Space" safely and easily.

Next, it will be an example of extending partition C with the free space in partition D by using the function of "Resize Partition".

Tips: AOMEI Partition Assistant is also fully compatible with the latest Windows 8.1, and the steps of changing partition size in Windows 8.1 are the same as those to change partition size in Windows 8.

Step 1: Download AOMEI Partition Assistant Standard Edition, install and launch it.Then you will see the main interface as showing below. Right click partition D, select "Resize Partition".

Resize Partition C

Step 2: in the pop-up window, drag the left end of the slider bar rightwards to get an unallocated space right behind partition C.

Step 3: right click partition C, select "Resize Partition", and in the pop-up window pull the right border of the slider bar rightwards to extend partition C.

Step 4: click "Apply" to save the changes.

As for the feature of "Extend Partition Wizard", it is much easier in the mission "change partition size for Windows 8". Here just present the simplified procedures.

Step 1: Run AOMEI Partition Assistant. Click "Extend Partition Wizard" at the left line.

Extend Partition Wizard

Step 2: A smaller window pops-up, and in this window you can see there are two decisions for you to make. Since the target partition is C drive, choose the upper one.

Extend System Partition

Step 3: Follow the guidance of AOMEI Partition Assistant, the Extend partition wizard grantees safely and promptly extend a partition on a disk. Then select the partition that you would like to take the free space from. Things should be plain sailing from now on.

Easy isn’t it? Apart from what has been talked above, there are many other basic and advanced features in AOMEI Partition Assistant, click here to learn more.