How to Allocate Free Space to C Drive in Windows 7/8/10?

Generally speaking, the hard drive isn't reasonably allocated. Therefore, many users want to extend system volume by allocating unused space from other drives. Here are two real cases of users:

No.1: "When I installed my computer, I had partitioned my Hard disk. I thought I left enough memory on my system drive. However, with increasing files and programs, the computer gave me a low disk warning. What could I do?"

No.2: "I have 30 GB on my system drive C and 80 GB on drive E, but 75 GB is free.  Is there any way to allocate free space from one partition to another?"

The problems above are very common when using your computer. In order to optimize the computer, many people try to find the best way to allocate free space to existing partition. AOMEI Partition Assistant Professional is reliable partition software to help you achieve the goal quickly. The “Allocate Free Space” feature in AOMEI allows you to allocate free disk space to another drive in Windows 7, 8, 10 as well as in Windows XP and Vista. 

Before you do all the procedures below, please download the free trial of AOMEI Partition Assistant first. Here is an example of allocating free space F drive to system C drive in Windows 7.

Step 1: Open it and you will see enough free space on drive F. Right click it and choose the button "Allocate Free Space". 

Allocate Free Space

Step 2: The following picture will show up. It will give you the detail. Choose the size and destination drive you want.

Allocate Free Space set

Step 3: Please check you procedures in "Pending Operations" on the sidebar. If there are some mistakes, you can click "Undo" or "Discard" on the toolbar. If all the operations are right, please click "Apply" to commit. After that, another window will show up. Please select "Proceed". The picture below shows all your operations are finished.


Just in a few minutes, you can finish allocating free space on the hard drive. Apart from this feature, it also provides functions to merge/split/resize/copy partition and so on. What we talked above is allocating redundant space from one partition to the other. If you have unallocated space existed, please refer to how to allocate unallocated space in Windows 7. Do you want to completely solve the unreasonable allocation on system drive? Would you like a better operational computer? Now, download it to optimize your computer!