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How to Extend C Drive in Windows 10

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Jan 27, 2024 • Filed to: Answer Hard Drive Problems • Proven solutions

Can anyone help? I want to extend the volume space in OS installed drive, but the Extend volume option is not appearing. For other drives, it's working perfectly. How to extend my C: drive volume?

If you are running out of space on your device and you have a huge data flow to handle, then the only way to deal with the problem is by extending c drive windows 10 (if you are using windows 10). This method i.e. extends c drive to another disk will help you to avoid using a number of external storage media. Rather you can create partitions on the internal hard drive and save the data on it. This article is all about the ways to how to extend c drive.

Data is always precious and any error or physical damage to the device or drive may lead to data loss. It is always advisable to create backups for your data and to store them at places other than internal drive with original data. In this context, the way out is to extend c drive windows 10. Extending the drive means creating new partitions. It will not only help to save the data or backups but at times when one of the partitions is corrupted, the other one is already there as a safe option. But when it comes to C drive, there are some limitations while extending the partitions. To extend c drive partition, here are some of the essential you need to follow:

  1. Start with shrinking the D partition. Then move it to the end of the drive.
  2. It will free the space before D.
  3. Add a recovery partition before D.
  4. It will create free space before C and you can easily expand the C partition.

This is how you can expand the partition for saving the new data. This article is all about the methods to extend c drive to another disk. Here are the topics that would be discussed in detail.

Part 1: When Do You Need to Extend C Drive in Windows 10/8/7?

You always need space to store the new set of data and to manage the incoming data flow. Low disk space is the main issue that always hinders the process of saving the data. As the space becomes low with time, you won’t be able to install the applications and software and other related files. All you would get is an error message i.e. Low disk space. You are running out of disk space on the system (C:). To free space on this drive by deleting old or unnecessary files, click here, or Low Disk Space. You are running out of disk space on Local Disk (C:). Click here to see if you can free space on this drive.

In this reference, using external hard drives or storage media is your option. But it is sometimes difficult to manage data on these devices. To reduce the efforts, it is recommended to extend c drive windows 10. Extending partitions would mean to create more space on the internal drive to save data. It will help to omit the use of a number of external storage media. So in case, your device is running out of space, you can extend c drive partition.

Part 2: How to Extend C Drive in Windows 10?

If you are looking forward to getting an answer for how to extend c drive partition or how to extend c drive, then this section is presenting you with two top-notch solutions. These solutions would help to extend the c drive and then you can save large amounts of data sets. Let’s get started!

Method 1. Extend C Drive Windows 10 via Disk Management

For extending the c drive, keep in mind, there must be unallocated space available. This unallocated space will let you extend the partitions. You can use disk management utility for extending the C drive partition. In other cases, you would get the error i.e. extend volume option greyed out and not available. Here are the steps to follow:

Step 1: In the main menu of windows, select the option of my computer. Right-click the option of my computer.

Step 2: In the drop-down menu, select the option of manage followed by selecting the option of storage.

Step 3: In the next window, select the option of disk management.

Step 4: Now right-click the partition that is targeted to be extended. In the drop-down menu, select the option of extend volume.


Step 5: Now here you have to set the size of the partition. Keep the size according to the requirement and click next to proceed.


Step 6: Once the partition is extended, click Finish to complete the action.

Now more space is available on the partition and you can save data and backups freely.

Method 2. Extend C Drive Windows 10 via CMD

Apart from disk management, you can also use disk part to extend c drive partition. It is a Windows built-in utility that works as a disk management tool. You need to be well experienced for using this disk part utility. Else you would end up damaging the entire hard drive. The CMD utility works on the command line to complete the tasks. Here are the steps to follow:

Step 1: Start the process with pressing windows key + X simultaneously. It will launch the command prompt.

Step 2: Run the command prompt with administrative access.

Step 3: Now type the following commands and click enter to continue.


Once the command prompts run successfully, you would end up extending C drive. Now you can save all data to C drive and avoid using bulk storage media.

If you are running out of space, you won’t be able to store the new data or the new backups. Creating backups is extremely important and saving them in a secure place is another important task. But C drive or internal disk only holds limited space to save the data. This would force you to save the data on external storage devices. Using storage media is also un-appreciable. This article has explained another viable way to save the data. It is i.e. extend c drive windows 10. Extending C drive partition would add space to it. Two important utilities are recommended in this article, as they can be used to extend the c drive. Disk management and CMD are the two utilities that help you to increase the size of the partition. Both methods are explained in detail with a stepwise procedure.

Recoverit author

Theo Lucia

chief Editor

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