如何扩大Windows 7/10的C盘空间| 将更多空间分配给C盘

Updated by

Sherly 

Written by

Linda 

Last updated on April 22, 2024

"Make C drive bigger" means adding more space to the C drive. Perhaps your C drive is full, and almost out of space, so you must extend the C drive as soon as possible because low disk space on the C drive will significantly affect computer performance. As for how to make C drive bigger, the method will vary depending on whether there is a "spare" partition or unallocated space next to the C drive. For example:

If drive C is full but drive D is empty, it's straightforward to allocate space from drive D to increase the capacity of drive C. Additionally, if drive C is full and drive D has both used and unused space, you would need to shrink drive D or delete it entirely to utilize that free space.

What's being discussed here is merely the assumption of allocating more space to C drive within the built-in Disk Management on Windows 10/8/7. However, the seemingly complicated process in Disk Management can be handled more easily and quickly with a third-party partition manager software - Partition Master.

"How to use Partition Master to increase C drive space"

Unlike disk management, there are no limitations to moving space from other drives to C with Partition Assistant.

How to Extend C Drive in Disk Management on Windows 7/8/10

On a Windows computer, you can use a program called “Disk Management” to resize partitions. In Windows 7, right-click “My Computer,” and in Windows 10, right-click “This PC,” then choose “Manage.” In the window that opens, look for “Disk Management” under “Storage” on the left side.

Most of the time, when you first open Disk Management, the Extend Volume option is grayed out and not available. If there is no unallocated space on the disk (i.e., no drive letter and file system), the Extend Volume option in Disk Management will be grayed out and unavailable. It's difficult for ordinary users to increase the C drive space here.

In this case, to enable the "Extend Volume" option in Disk Management, you need to delete Drive D first to create unallocated space next to Drive C. Here's a detailed guide for you:

Step 1: Right-click on Drive D and select "Delete Volume." This will make Drive D become unallocated space.

Step 2: Right-click on C drive and select "Extend Volume".

Step 3. In the "Extend Volume Wizard" that pops up, click "Next" all the way through to finish, and the unallocated space will be added to your C: drive.

How to Extend C Drive in Windows 7/8/10 with Partition Master Tool

To simplify the system partition resizing process, you can use the recommended third-party tool - Partition Manager Software.

To get more space for C drive from another disk without shrinking or deleting existing partitions in advance, the most direct and acceptable method is to use the "Allocate Space" feature. You don't need to consider how to get unallocated space for adjusting the C drive. Just select a disk with sufficient available space and click "Allocate Space" to add it to the C drive with one click.

For example, to allocate more space from drive D to drive C:

Step 1. Right-click on the D: partition with enough free space, and select "Extend Volume."

Step 2. Select the target partition - C drive, and then drag the partition panel rightwards to add space from D drive to C drive. Then click “OK” to confirm.

Click on the “Perform Tasks” button and then click “Apply” to start the process of transferring free space from Drive D to Drive C.

Can you make a bigger hard drive for yourself now?

Regarding the topic of "How to Increase C Drive Space," we've introduced two methods, including the built-in Windows Disk Management and third-party disk and partition management software. Although the built-in tool provides users with the options to "Shrink Volume" and "Extend Volume" to reduce or expand drives, there's a rule that unallocated space must be created beforehand and must be located on the same side as the C drive, which can be difficult to manipulate.

In contrast, third-party tools are smarter. It's a one-click operation to borrow space from any other disk for Disk C, without data loss.