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 certain files are expected to be found by the operating system while booting the system. In addition, the C: drive stores data in an orderly manner. The C: drive is also called system partition.
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.
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.
The following is step-by-step instruction to extend system partition (C: drive).
1. Launch EaseUS Partition Master.

If there is no unallocated space behind the system partition, please follow the below steps. If there is unallocated space behind the system partition, please directly go to step 4.
2. Select partition E:, right click it, select "Resize/Move partition" and drag the partition handle leftwards to resize E drive. Then there will be unallocated space behind E: drive.

3. Move E: drive rightwards to let the unallocated space be behind the system partition (C: drive) and click OK.

4. Select the system partition (C: drive), right click it and select "Resize/Move partition", drag the partition handle rightwards to extend system partition (C: drive).

5. Click Apply.
For more detailed information, please visit resizing and moving partitions.
Besides Partition Manager, 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.
Do not forget to back up your data in Case of Data Loss! Back up with the most advanced backup software - EaseUS Todo Backup Workstation.
Thanks for visiting EaseUS, please let us know how we can improve this article or make it more useful to you. Should you need technical support please feel free to contact support@partition-tool.com.
Privacy Policy | License | Legal Counsel | Sitemap
Copyright © 2005-2013 CHENGDU Yiwo® Tech Development Co., Ltd. All rights reserved.
Partition Magic ® is a registered trademark of Symantec Corporation.