Resize C: Drive with Magic Partition Manager Software

Jean updated on Sep 12, 2019 to Partition Master | How-to Articles

The Importance of C: Drive

The primary function of C: drive is usually to provide a means of permanent storage for the operating system and other files required to "boot" the machine. Hard drives can reliably store this data even while powered off or physically removed from the computer. The C: drive is also the default drive, and it is where specific files are expected to be found by the operating system while booting the system. Also, the C: drive stores data in an orderly manner. The C: drive is also called system partition.

Why Do We Need to Resize C: Drive

No matter which kind of operating system you have installed, the scheduled size of C: drive could not always meet your needs, as Windows continues to download a large number of updates. If C: drive is running out of place and struggles for precious unallocated space, you are unable to install new programs again. And the whole performance of your computer will decline. For example, the computer goes slow. Then you must change the size of the C: drive. Although some operating systems, such as Windows Server 2008, provide you with partition resize utility, it has some limitations. You also have some other choices such as cleaning up the hard disk drive or upgrading to a larger hard disk. But the best choice for you should be turning to a third party partition manager software to extend your system partition - the C: drive. EaseUS Partition Master is just the right partition software to resize your partition.

How to Resize C: Drive with Partition Software - Easeus Partition Master

EaseUS Partition Master, as magic partition software, is a comprehensive hard disk partition management software to let you enjoy with all the powerful functions: Resize and Move partitions, Copy Partition, Copy Disk, Create, Delete and Format partitions, merge partitions and split partitions and much more on MBR disk and GPT disk.

Download EaseUS free partition manager and follow the step-by-step instruction to extend system partition (C: drive).

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 Windows 10 is supported


Step 1: Launch EaseUS Partition Master

Run EaseUS Partition Master

Step 2: Increase C drive space

1. Shrink partition to free up unallocated space:

Right-click on a partition next to the C: drive and select "Resize/Move".
Drag either end of the partition to shrink and leave unallocated space behind the system C: drive and click "OK".

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

Extend System partition

3. Drag the system partition end into unallocated space so to add space to C: drive.

Add space to C drive

Step 3: Keep all changes to extend C: drive

Click the "Execute Operation" and click "Apply" to keep all changes so to extend the system C: drive.

Confirm to extend system C drive

Besides resize partition, EaseUS Partition Master provides Partition Recovery Wizard and Disk and Partition Copy Wizard features. It is a complete solution to solve your disk and partition problem.

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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