Two Methods to Extend Windows 7 System Partition

Why extend Windows 7 boot partition?

I am a Windows 7 user, and I always try my best to search the best way to extend system partition in Windows 7, because the space on the system drive is not enough for me. When it comes to this problem, I have to delete the unwanted files and data to make room for the system drive, so I can have a better condition for my computer. What I do for the computer makes me crazy, because I don't want to delete them sometimes. Meanwhile, it is a waste of time for me. Luckily, I have found two ways to solve the problem, Windows built-in Disk Management and powerful third party software. Let me show you one by one.

How to extend Windows 7 system partition with Disk Management?

The Disk Management in Windows 7 has better function than previous Windows edition. It provides the function of extending and shrinking volume, while there are still some limitations. And, it is necessary to know them, because it can help you accomplish the task safely. Generally speaking, the option "Shrink Volume" only creates unallocated space behind the partition, and "Extend Volume" can only work when there is contiguous unallocated space. Thus, if you want to expand system partition to non-adjacent space, it is unavoidable to delete the partitions between system drive and unallocated space.

Assuming that G is between C (system drive) and an unallocated space, what you have to finish is to extend C. As it mentioned above, G must be deleted, if not, you will find Windows 7 extend system partition greyed out as follow. Here are the detailed steps.

Extend Volume.gif

First, please backup all data on G to other partitions with free backup software maybe.

Second, right click "Computer"→choose "Manage" →select "Storage" →click "Disk Management" →right click G →select "Delete Volume".

Delete Volume.gif

Finally, you will see the unallocated space is rightly behind C. Right click C: and choose "Extend Volume".

Note: Although it can expand system partition in Windows 7, it is a big trouble to delete all the drives between system drive and unallocated space because move drives in Disk Management is unavailable. Meanwhile, you may worry about the data's safety during the process of transferring data. So, I highly recommend you to use the second method, extend NTFS system partition in Windows 7 with professional partitioning software.

Expand Windows 7 system partition via AOMEI Partition Assistant

AOMEI Partition Assistant Professional is easy to handle and just takes a few seconds to accomplish the task. It can make full use of the free space and unallocated space on a disk. Besides, it provides other advanced features, like move/wipe/hide/unhide partitions, copy disks/volumes, etc. All of the features can ensure the data's safety. Now, let me show you an example.

Step1Download this software freely and start it. You will see the overview of the disk partitions. Clearly, behind G drive there has a large size of unallocated space. Right click C drive and choose "Merge Partitions".

Merge Partitions.gif

Step2. In the following window, check system drive and all unallocated space and click "OK".

Check unallocated space.gif

Step3. Remember to click "Apply" to commit the task.



Another roundabout method is move partition G to the right side of the unallocated space first with the “Move Partition” feature. Then right-click C drive to resize it. This is also workable yet less direct than the example I mentioned before.

In summary, it is not so hard to extend Windows 7 system partition using either Disk Management or AOMEI Partition Assistant. However, for the safety of your data, it is suggested to use the second method. Apart from extending Windows system partition in Windows 7, this method also applies to Windows 10/8/XP/Vista. AOMEI Partition Assistant is all-around software, for example, you can shrink C drive beyond half with it when C drive is too large.