What to Do If I Want to Increse the C Drive Space by Allocating the Space of Another Partition?

How do I increase the C drive partition size in Windows 8.1? I plan to reduce one of the other drive sizes (D, E, and F) so that I can allot the space to the C drive. Does anybody know how to do it with reliable software?

Best Answered by

Roxanne· Answered on Aug 09, 2023

According to what you said, you want to reallocate the free space of another partition to the system C partition. I will introduce two practical ways to help you achieve there. Read on and learn the tutorial in detail.

Method 1. Professional Partition Manager

A handy tool will save you time and effort, so I highly recommend EaseUS Partition Master. This third-party software facilitates a broad spectrum of disk-related tasks with ease and efficiency, which generates a "Allocate Space" feature that can increase C drive in an advanced way. Beyond allocating space, it can also resize disk partitions safely.

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Let me show you how to operate this feature:

Step 1. Right-click on the partition next to the system partition with much free space and click "Allocate Space."

Step 2. Select the system C partition and drag its end rightward by holding the mouse. Then click "OK" to confirm the action.

Step 3. Choose "Execute Task" > "Apply" to begin the allocating process.

Method 2. Disk Management

As a Windows built-in tool, Disk Management can offer reliable technical support to assist users in resizing Windows server partitions and increasing the system partition by reducing other partition's unused space. However, it's time-consuming, and you can only allocate the free space from adjacent partition. Here is how to do so:

  • Press "Windows + X" and click Disk Management.
  • Right-click on the partition behind the system partition and choose "Shrink Volume." (The wizard will show you how much space you can free. Maximize it and then shrink the volume.)
  • Now right-click on the system partition and select "Extend Volume."

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