How to Create D Drive from C Drive in Windows 10

If you wish to classify your files and Apps but PC only has a C drive, how to create D drive from C drive in Windows 10? Check this post to find the best way.


By Lucas / Updated on May 12, 2023

Share this: instagram reddit

Most current computers come with a single partition on their hard disk, which is commonly a C drive. Some may believe that installing all applications and files on the C disk will allow them to boot faster. In fact, partitions are necessary. Having several partitions on your hard drive has various advantages:

◤ Separating the operating system and application files from the user files:
Instead of imaging, backing up, or cloning the entire disk, you may image, backup, or clone only the OS and installed programs, saving you a lot of time.

◤ Making a dual boot system:
This allows you to run different operating systems on a single computer.

◤ Protecting or isolating files:
Because only one partition is infected and other file systems are unaffected, this allows you to simply recover a corrupted file system or operating system installation.

No matter what reason that makes you need a D partition, the problem is “How do you create a D drive in Windows 10?” Let’s move to the solution part.

2 Ways: How to create D drive from C drive in Windows 10

In this part, we’ll use 2 applications to make D drive from C drive.

1. Shrink C drive to create D drive via Disk Management

Disk Management is a Windows built-in disk and partition management tool, it can help users do some basic management for their devices.

Step 1. Right-click “This PC” and choose “Manage”

Step 2. Select “Disk Management” in the left panel.

Step 3. Right-click your C drive and choose “Shrink Volume”.


Step 4. Enter the amount of space you wish to reduce or use the up and down arrows behind the box.


Step 5. You will see the unallocated space next to the C drive. Right-click the unallocated space, and select “New Simple Volume”.

New simple volume

Step 6. The New Simple Volume Wizard is used to configure the specific details of the newly created partition. The end result should be as follows.


▶ Note: If you have a 700 GB C partition with 500 GB available. This C partition may only be shrunk by 350 GB or less, otherwise, you’re unable to shrink it. Because of the amount of space currently allocated to the hard drive for the virtual memory page file, system protection maximum storage space size, and hibernation files might limit the size of the available shrink space.

2. Quickly split C drive to create D drive

If you are unfortunate enough to find yourself in the situation that we mentioned in the note, third-party software is a nice option. If you're not sure which one to use, we sincerely recommend you AOMEI Partition Assistant Professional.

It has a clean and simple UI with several strong features built-in. The “Split Partition” feature allows you to split one partition into two and the shared space can be more than half of the original partition’s size.

Download this guide to discover how to make D drive from a C drive in Windows 10.

Free DownloadWin 11/10/8.1/8/7/XP
Secure Download

Step 1. Right-click C drive and select “Split Partition”.

Split C drive

Step 2. Adjust the size of the partitions. And click “OK”.

New partiton

Step 3. Click “Apply” in the main window, and you can see the details of this operation, and click “Proceed” to finish the task.


Now you can enjoy your new partition. If you need more partitions, you can split again. And if you wish to change the size after the splitting, you can choose “Resize Partition” to adjust the size.


With the assistance of AOMEI Partition Assistant, “how to create D drive from C drive in Windows 10” or “how to partition C drive in Windows 10” will never be a hard job for you.

This versatile tool also has “Convert to GPT/MBR”, “App Mover”, “Convert to Logical/Primary” functions and more. If you’re a Server user, you can choose the Server Edition to optimize your devices.

Lucas · Staff Editor
I prefer peaceful and quiet life during vacation,but sometimes I watch football match if my favorite club performs brilliantly in that season. And I love reading, painting and calligraphy, thus I send my friends festival handwriting cards every year.