How to Extend C Drive in Windows 10 with or without Software


Software’s take lot of space. Are you running low on Local Disk space? You can extend C Drive in windows 10 without compromising on any of your files. Let’s see how.

Extend C Drive IN WINDOWS 10 using EaseUS (With Software)

The first method requires installing a tool EaseUS Partition Master (Paid version).

Step 1: Install the EaseUS Partition Master

EaseUS partition Master is a multi utility tool that can help you accomplish several tasks such as extend C Drive in windows 10, allocate space, clone, merge, or format, you can also change drive names and perform surface tests and more.

The current process which we are going to perform requires pro membership. You can download the trial version from this link – Download Now

EXTEND C DRIVE IN WINDOWS 10 Software - EasyUS Partition Master
Installation Screenshot – EaseUS Partition Master

Step 2: Select the drive you need to extend.

Select the drive which is low on storage or which you want to extend.

Choose the drive you wish to extend.

Step: 3 : Check for unallocated space or the drive that has free space.

To allocate space to C drive you need to check for unallocated space. If you do not have any unallocated space, then in order to extend your C Drive select the drive which have space that can be allocated to C Drive.

Resize/ Move Partition Disk Space

Step 4: Choose the partition from which you want the space to be allocated.

After choosing the partition from which space will be allocated to C Drive, Simply, drag the pointer to how much you want to add space to C Drive. Keep in mind since the drive space will be allocated from this drive make sure the amount of space you’ll be using is free (there’s no content on it).

Space allocation Hard Disk

Step 5: Select Ok and proceed.

C Drive Extension will be completed after a successful restart.


Step 1: Open Computer Management

Type Windows + R. Type compmgmt.msc in Run Prompt and click Ok.

Computer Management

Step 2 : Open Storage

Click the Disk Management tab Under the Storage Tab in left window pane.

Computer Management Setting

Step 3: Shrink Volume

For allocation for space we need unallocated space. In order to create unallocated space you need to free already allocated space to drives. Right-click on any drive you wish to free the space from and click on shrink volume.


Step 4: Enter the amount of space to shrink in MB

Calculate the space you want to allocate to C Drive. You can use this tool if you don’t know how to convert GB to MB – MB to GB converter. Type the required amount of space. Make sure it’s under the free space of that drive.

Shrink Volume

Step 5: Click Ok and Proceed.

It will look something like this.

Unallocated Space

Step 6: Create a new Volume

Create a new volume out of the unallocated space.

New Volume Creation

Step 7: Go to System properties

Sometimes, if paging system is default these paging files are distributed across all drives so certain files still exist in these drives and you might encounter these options greyed out (disabled). So to enable these we need to set the paging files to no paging for the new volume created.

  1. Go to My Computer > Properties > Change Settings > Advanced > Settings
System Properties

Step 8 : Go to Virtual memory ( For Paging )

Once you get into System properties.

  1. Go to Advanced Tab. Click on performance options > Virtual Memory
  2. Inside the Virtual Prompt uncheck the Automatically manage paging size for all drivers.
  3. Set C drive to System managed and New Volume to no paging file.
  4. Click Ok and restart your system.
Virtual Memory Settings

Step 9 : Extend C Drive In Windows 10

  1. Restart your system. After restart go to Computer Management > Disk Management
  2. Right click on C Drive and extend the volume successfully.
Local Disk C Extended Screenshot

Your C Drive is successfully extended enjoy!