Extend System Partition in Windows 8/7/Vista/XP and Windows Server 2000/2003/2008

Why Need to Extend System Partition?

As applications continue to be installed into the Windows system, one day, suddenly you will find that the system (drive C:) or boot partition do not have enough free disk space, and when every time the system starts, Windows always prompts the following information:

"You are running out of disk space on SYSTEM (C:), To free space on this drive by deleting old or unnecessary files, click here…"

Low Disk Space

In this case we have two solutions:
Solution A- Delete the unwanted files for getting more free space like what system suggests. However, deleting files is not the best way, it could not solve the issue from the roots.
Solution B- Addressed the issue from the roots, extend system partition size by using Windows partition manager (AOMEI Partition Assistant or Disk Management) to allocate free space from other partition to system drive. Here is an example about the "solution B", the demo partition configuration is lay out as below:

Disk Management

Top 3 Solutions to Extend System Partition without Losing Data

  • Solution 1
  • Solution 2
  • Solution 3

Expand system partition by using Extend Partition Wizard of AOMEI Partition Assistant.

AOMEI Partition Assistant Pro Edition is specially designed for extending system boot partition and other partitions on a disk for Windows 8/7/XP/Vista 32 & 64 bit. It can fully utilize the free/unallocated space on the disk to meet your needs. The program will automatically shrink large partitions to release more space and then increase the size for your appointed partition. It's easy and safe without losing data, without reformatting partition. Besides, this Windows partition manager also could assist you to realize more advanced partition operations.

Step 1: Download AOMEI Partition Assistant and run it as administrator privilege, you will see the following Main Window, click the "Wizard" option on menu bar and select "Extend Partition Wizard". (Or directly click the option in the red region)

Extend Partition Wizard

Step 2: Get the following "Extend Partition Wizard" dialog. Please select the partition that you wish to extend (eg. "Extend system partition") shown below:

Extend System Partition

Step 3: Click "Next" button, skip a welcome screen, and select partitions which will need to be shrunk to take the free space from them. The screenshot is as follows.

Select Partitions

Step 4: Specify a new size of the C: partition that you are extending by moving slider or by entering proper value into "Partition New Size" box, and you could preview the changes in time.

Partition New Size

Drag Slider Bar

Step 5: Preview and confirm these operations by clicking "Proceed" and then choose "Yes" to start.

Hard Disk Layout

Step 6: Show the operation is being processed. You will receive a report when completing. Then view C: drive in Explorer, you found it has been extended.

Extend Partition is being processed

Then, extending system partition is complete successfully!

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