How to Extend C Drive in Windows 10 Without Formatting

Have you ever receive the low disk space warning when you boot your computer or use a hard drive? When this error message pops out, it means that your hard drive is running out of space.

Insufficient disk space will affect the normal use of a computer, the system disk space shortage is particularly serious. When your C drive is full and out of space, you will suffer low work efficiency, the system will run unstable, and you may not be able to download and install new software or use the installed programs.

If you are in this situation, don't worry. One way to solve this problem is to extend system partition to improve computer performance. How to extend C drive in Windows 10/8/7? Qiling partition manager offers you the simplest way to increase C drive.

How to Extend C Drive with Qiling Partition Master

Qiling Partition Master is an all-in-one partitioning tool that is fully compatible with Windows 10/8.1/8/7/Vista/XP. With this program, you can extend C drive effortlessly with or without unallocated space.

When there is unallocated space on your system disk, you can simply resize C drive to get more space. When there is no unallocated space on your hard disk, you can apply Qiling partition manager to increase C drive with free space on other partitions.

You can make the following hard drive managements without data loss and any effort with Qiling disk management tool.

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Extend C Drive Without Formatting Using Resize/Move Partition Option

When there is no unallocated space on your disk and you don't want to delete or format the hard drive, you can use Qiling partition management software to extend C drive and by its "Resize/Move partition" feature.

Option 1. Extend System C drive with unallocated space

Step 1. You should first select the System C: drive that want to adjust its size and select "Resize/Move" in the "Disk management" page.

Step 2. Simply Drag the system partition end into the unallocated space so to add it to the C: drive and click "Proceed" to start resize the partition.

You can see how to move space from D drive to C drive.

Option 2. Extend System C drive without unallocated space

Step 1. You should first select a big partition with enough free space on the system disk and select "Resize/Move" in the "Disk management" page.

Step 2. Drag the begin of this big partition drive into the partition space for shrink the partitiong. Click "Proceed" to confirm.

Step 3. Extend System C drive with unallocated space.

How to Extend C Drive When There Is Adjacent Unallocated Space

As mentioned before, you can use Qiling Partition Master to add space to the C drive in complicated circumstances. For example, there is no unallocated space on your disk, or the unallocated space is not adjacent to the C drive.

However, if you are in this simple case, that is C drive has adjacent unallocated space, you have two ways to expand C drive.

1. Extend C Drive by Using Disk Management

Windows 10 Disk Management can finish some basic disk management, such as delete/format/create/shrink a partition. Here are detailed steps for extending the C drive.

Step 1. Right-click the Windows button, choose "Disk Management".

Step 2. Right-click C drive and choose "Extend Volume...".

Step 3. Follow the on-screen instructions to finish extending C drive.

2. Increase C Drive with Diskaprt Utility

When there is a contiguous adjacent unallocated space behind the C drive, you can also increase C drive by using the Diskpart tool in CMD.

Step 1. Press the Win+R buttons to open the Run dialogue. Then, type diskpart and press Enter.

Step 2. Type the following command lines in order and press Enter after each one.

list disk
select disk x (x is the number of the system disk)
list partition
select partition x (x is the number of C drive)
extend size=x disk=N (x is the size in MB you want to add to the system partition, N is the number of your system disk.)

Qiling Partition Master - A Simple C Drive Partition Extender

After reading this guide, we believe that you've learned how to extend C drive in every way. If there is adjacent unallocated space right behind the C drive, you can use the Windows built-in tools - Disk Management and Diskpart to extend C drive with ease.

If things get a little more complicated, then, Qiling Partition Master is your best choice. It can easily extend C drive with different solutions.

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