When the performance of a computer becomes worse and worse, one of the reasons is that the free space of the C drive partition becomes smaller and smaller. Thus, to fix the problem, you can choose to increase the C drive partition. And this post will show you how to extend C partition without data loss.

How to Increase C Drive Partition without data loss?

When a computer has been used for a long time, a large number of files and data can be saved on a local disk. Thus, you will find that the free space of the C partition is becoming less and less, and even the performance of the computer will be affected.

In order to solve this problem, you can clean up disk space to get more space or upgrade to a larger hard drive.

And today, another way will be introduced, which is to increase C drive partition without data loss.

In order to extend C partition, you can take advantage of a piece of third-party software. And here, the professional partition manager – MiniTool Partition Wizard is recommended.

With its various powerful features, it can completely control your hard drive and partition. For example, it can help you to migrate OS to SSD without data loss.

In order to extend system partition, you need to purchase MiniTool Partition Wizard from the following button.

And here, we will tell you how to extend C partition without data loss.

Step-by-Step to Increase C Drive Partition

Now, you can extend system partition based on following instructions.

Step 1: Install the software and lunch it to enter its main interface.

Step 2: To extend C system partition without data loss, you had better make operations in MiniTool Recovery Environment. Thus, you need to click Bootable Media feature in the tools bar to create a bootable disc or a USB drive so as to boot your computer from it.

As to boot the computer from the bootable media, you can refer to the article: How to Boot from Burned MiniTool Bootable CD/DVD Discs or USB Flash Drive?

Step 3: After boot successfully, select the C drive partition and choose Extend from the context menu.

select C drive partition and choose Extend

Note: Please kindly note that the drive letter in MiniTool Recovery Environment might be different from drive letter in the Disk Management.

Step 4: Then open the dropdown list from the Take Free Space from and choose the partition on the same drive to take free space. Meanwhile, you also can drag the sliding handle to decide how much free space you want to take. Then press the OK button to continue.

decide how much free space to take

Step 4: You can preview the change and click Apply to increase C drive partition. After that, can shut down the software and restart your computer.

click Apply to confirm this changer and restart your computer

Of course, Disk Management also can extend the partition. But there are some situations that will lead to Extend Volume grayed out.

  • There is no adjacent unallocated on the right of primary partition.
  • There is no free space on the right of the logical partition.
  • The target partition is not RAW, FAT32 or NTFS file system.

Related article: Why Extend Volume Grayed out and How to Quickly Fix It

I used MiniTool Partition Wizard to extend C drive partition without data loss. After that my computer performance has become better and I also can take full advantage of the unallocated space.Click to Tweet

Bottom Line

From the above information, you can know that MiniTool Partition Wizard is very convenient to increase C drive partition and it is very easy to operate even to those inexperienced persons.

And compared with Disk Management, it is more flexible since it doesn’t need the adjacent unallocated space on the right of the primary partition and it can take full advantage of free space.

Now, it is your turn to have a try. If you have a better solution to extend system partition, welcome to share it in the comment zone. Or if you have any question related to MiniTool Partition Wizard, you can contact us via [email protected].

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