By Bryce / Last Updated March 6, 2020

When need a partition manager for Windows 7?

It’s well known that there is the built-in partition manager, Disk Management in Windows 7. And it is able to manage disk partitions conveniently. In Disk Management, you can create, delete, format partition, assign a drive letter to a partition and so on. Then, why we need third-party partition manager software for Windows 7?

Just have a closer look at the following conditions to realize when we need to turn to a third-party partition software.

▶Case 1. Extend Volume greyed out when extending system drive

“I want to extend my system drive with Windows 7 installed on and there is unallocated space on the same hard disk just. But I find that Extend Volume Option is greyed out just like the following screenshot? How can I add the unallocated space into my C drive? “

▶ Case 2. Can’t shrink partition as I expect

“I’m trying to shrink C drive in Windows 7 by 40GB for creating a new partition and C drive has 40.08GB unused space. But the size of available shrink space in MB is only 24.51GB. And it says that you cannot shrink a volume beyond the point where any unmovable files are located. Why Can’t I shrink as I expect even when there is enough unused space? Is unmovable files the reason?

Disk Management is a useful utility to manage disk partitions, but it’s not omnipotent. Apart from the two cases aforementioned, there are many other occasions where you need a great third-party partition manager, like format partition beyond 32GB to FAT32, converting NTFS to FAT32 without formatting, resize FAT32 partition on external hard drive, etc.

A safe and powerful partition manager for Windows 7

If you are seeking out free yet reliable third-party disk partition manager software, give AOMEI Partition Assistant Standard a shot. This partition manager can work under Windows 7 (64bit and 32bit), Windows 8, Windows 8.1, Windows 10, Windows XP and Vista. With it, you can resolve many problems. Examples are below:

✌ It can extend partition (C drive included) with non-contiguous unallocated space.
✌ It can shrink partition without the limitation of unmovable files.
✌ It is able to shrink or extend FAT32 partition.
✌ It enables you to make bootable media to rebuild MBR.
✌ It is capable of creating the second partition on SD card or USB flash drive.
✌ It allows you to copy partition to a new hard drive for data protection or transfer.

What’s more, this free partition software is very easy to use and works smoothly.

Manage partition in Windows 7 with AOMEI Partition Assistant Standard

Now, it’s time to free download the partition manager and install it to manage your partitions effortlessly.

Then, check out how it works (takes how it extend C drive in Windows 7 without losing data and format 64GB partition as two examples).

Add non-contiguous unallocated space into C drive in Windows 7

Step 1. Run AOMEI Partition Assistant Standard, in the main interface, right-click C drive and choose Merge Partitions.

Step 2. Tick the box before the Unallocated and click OK button.

Step 3. Then, click Apply and Proceed to execute the operation.

After that, you’ll see that your C drive has been extended.


  • As it involves system drive, this operation needs to be performed under PreOS mode.

  • You can use Merge Partitions to combine two partitions in Windows 7 as well.

Format 64GB SD card partition to FAT32 in Windows 7

Step 1. Run the software, click the 64GB partition that you want to format to FAT32 and choose Format Partition.

Step 3. Choose FAT32 among the listed file systems and click OK.

Step 3. Click Apply and Proceed button to commit it

Final words

Whether you want to increase the capacity of system drive with non-adjacent unallocated space, shrink partition, format large partition to FAT32 or do something else, like changing partition, the overall and professional partition manager for Windows 7, 8, 8.1, 10, XP and Vista, AOMEI Partition Assistant Standard can be a great choice.

Besides, it’s available to upgrade to Professional version, if you want to enjoy more advanced functions of this software, such as recovering deleted partition, splitting partition, converting MBR system disk into GPT without losing data, etc.