How to Move Space from D Drive to C Drive Windows 10/8/7

Cedric Grantham updated on Sep 07, 2020 to Partition Master | How-to Articles

Nowadays, computers have become an integral part of our lives and work. But the longer the computer works, the more we can perceive that the C drive indicates insufficient memory. When the C drive that is equivalent to the human heart, runs out of memory, countless operational problems will follow, such as computer crashes, card freezers, etc. These problems upset many users. You might haven't downloaded anything, how will the space of drive C be getting smaller? Don't worry. We will explain why the C drive space is becoming smaller and smaller. In addition to providing solutions for these causes, we'll also teach you how to move space from D drive to C drive on Windows 10/8/7 in two ways with a partition magic software -EaseUS Partition Master. With the help of this tool, you can transfer space from D drive to C drive directly without any data loss.

Why C Drive Is Getting Smaller

In general, C drive is the system disk on a computer. When the Windows operating system runs, it will generate a lot of junk files. No matter you use it or not, the C drive space will become smaller to a certain extent. There are many reasons why the remaining space of C drive is becoming less and less. The following aspects are summarized for you:

1. Files in the recycle bin take up space. The more data stored temporarily in the recycle bin, the more space on the C drive will be taken up. You can delete the files in the recycle bin, then C drive space will increase accordingly. You can recover deleted files from emptied recycle bin if you remove them mistakenly.

2. Is system restore enabled on your computer? The system restore setting will reduce the space of the C drive; you can disable if not necessary.

3. Page files and virtual memory. The page file is relatively large. If the page file is stored in the C drive, it may make the computer's virtual memory reach a certain limit. Therefore, you need to run the task manager at any time to see if the computer's memory is almost exhausted. If so, you should transfer the page files to another disk. 

4. Too many temporary files. You can use the disk cleaning program that comes with the C drive system to clean up junk files because this will not delete the files that should not be removed by mistake. See how to solve there is not enough space on C drive.

5. Installing software to the C drive will definitely consume memory. Although sometimes you choose to install to other disks, the relevant registration files will be placed in the system folder, which will cause the capacity of the C drive to become smaller and smaller. So, install applications outside of C drive, such as to the D drive.

If you have tried the solutions mentioned above, but the C drive still doesn't have enough free space, however, your data disk, such as D drive, has a lot of available space, then why not try to move free space of D drive to C drive to extend? 

How to Move Space from D Drive to C Drive Windows 10/8/7

EaseUS Partition Master, one of the most well-known partition management programs, enables you to easily partition hard drives on Windows computers and take full advantage of your disk space. You can use it resize/move partitions, merge partitions, create/format/delete partitions, migrate OS to SSD/HDD to speed up Windows, and more. Now, use this competent partition management program to move space from D drive to C drive or from any other data drive to C in two approaches.

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 Windows 10 is supported

Allocate Space from D Drive to C Drive Directly

You can use the new "Allocate Space" feature to increase C drive from D drive without deleting D drive to make unallocated space.

Step 1. Right-click on the D partition with enough free space and select "Allocate Space" to allocate the free space to the C drive.

Select partition to allocate space

Step 2. Select the target partition that you need to extend, here, choose C drive. Drag the partition panel rightward to add space allocated from the source partition to the target one. Then click "OK" to confirm.

Allocate space to extend partition

Step 3. Click the "Execute Operation" button and click "Apply" to start the process of moving free space from D drive to C drive.

finish extending partition

Shrink D Drive and Extend C Drive

Alternatively, you can also move space from D to C by shrinking D drive at first, then extending C drive with the unallocated space.

Step 1: Launch EaseUS Partition Master

Run EaseUS Partition Master

Step 2: Add space to the System C drive

1. Shrink partition and leave unallocated space for extending C: drive:

  • Right-click on a partition next to the C: drive and select "Resize/Move".
  • Drag the end of the partition that is next to the C: drive and shrink it, leaving unallocated space next to the system C: drive, and click "OK".

2. Right-click on the System C: drive and select "Resize/Move".

Extend System partition

To add space to the C: drive, drag the system partition end into the unallocated space.

Add space to C drive

Step 3: Confirm to extend system C drive

Click the "Execute Operation" button, it will list the pending operations, and click "Apply" to execute the changes and extend the C drive.

Confirm to extend system C drive

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Frequently Asked Questions

Why Choose EaseUS Partition Master?

"I've used Partition Master Professional many times to create, delete, format, move, rename, and resize partitions."PCWorld

"Partitioning tools have come a very long since the days of complicated command line utilities and EASEUS Partition Master is one of the most advanced programs available."TECH ADVISOR

"I love that the changes you make with EaseUS Partition Master Free aren't immediately applied to the disks. It makes it way easier to play out what will happen after you've made all the changes."Lifewire

Will the "Migrate OS" feature transfer the Windows system files only or the whole C drive?

To ensure that the migrated system will boot normally, the Migrate OS feature will transfer all the files in the system and the boot partitions. Generally, the boot partition is the C drive so the transfer will include all the files in C.

Does EaseUS Partition Master license apply to multiple computers?

The license of Partition Master Professional and Server editions can be used on 1 computer only, while that for for the Technician and Unlimited editions can be used on multiple machines.

What is the difference between EaseUS Partition Master Trial version and the Free version?

Free is for home users only, with most basic functions available such as partition resize and clone. While trial can help you understand how this product works and test what a full license can do on a business or server OS machine.

Will it cause any data loss after resizing the partition in EaseUS Partition Master?

Generally, it will not cause any data loss or boot issue by resizing a partition. However, in order to protect your data, we suggest that you backup the partition before resizing, in case of any unexpected situations such as power outages, computer hardware failures, etc. You can use EaseUS Todo Backup to backup the partition and its trial version is fully functioned for 30 days.

What should I prepare before resizing the partition?

On the partition that is going to be operated, there might be some files being occupied by other programs. To ensure a successful operation, we suggest that you close all the unnecessary software before resizing that partition. Otherwise, EaseUS Partition Master will detect the partition being locked by the other software and require a reboot to resize the partition under boot mode.

About EaseUS Partition Master

All-round disk & partition management software for personal and commercial use. Let it manage your storage drive: resize, format, delete, clone, convert, etc.

Video Tutorial

How to Partititon a Hard Drive on Windows 10/8/7