Want to shrink C drive and extend D drive or just want to shrink C drive to 100GB?You can refer to below three ways to achieve the task in Windows 10/8/7/XP/Vista as well as Windows Server 2003/2008/2012/2016.
By Teresa / Last Updated February 1, 2019
Shrinking volume from C drive takes fully advantages of a hard disk that does not using its all space. For example, you have a 200GB hard drive with only C drive partitioned and there are 50GB in size has been used. You may want to shrink C drive to 100GB for system files and make a new partition for personal data or new released system with the generated space.
Some users want to shrink C drive and extend D drive with the redundant space. This may result from unreasonable partition layout when they first partition the hard drive, which may make hard drive management harder.
Anyway, no matter what factor leads you to shrink the system drive, the most important thing is to find out how to do this. Following parts will discuss three methods about shrinking C drive in Windows.
Here in this tutorial, it will take shrink C drive partition Windows 7 for example. However, before you start, clean up some of the crap first. For instance, empty the recycle bin and delete useless files on the C drive. Next, create a system image for your computer. These methods won’t cause data loss but you cannot be more careful in dealing with system and data.
Firstly, right-click "Computer"-> "Manage"-> double click "Disk Management" and right-click the C drive, select "Shrink Partition". It will query volume for available shrink space.
Secondly, type in the amount of space that you want to shrink by or click the up and down arrows behind the box (no more than 37152 MB).
Finally, you will see the unallocated space next to C drive.
Diskpart is one of the built-in partition tools in Windows, which is an embedded
product that needs to be used under Command Prompt. Press
Input shrink desired=10240 (size stands for the capacity you will shrink by and the unit is MB) and press Enter.
Input exit and press Enter.
When shrink C partition with Disk Management, you are likely to encounter one confusing situation. For example, you have 909 GB on your C drive. However, when you plan to shrink this partition only to find the available space is only 297 MB according to the querying results. While at the top of the screen, it indicates that C drive has 472 GB of free space. What is wrong?
Well, the answer is the size of the available shrink space can be restricted by the amount of space currently allocated to on the hard drive for the virtual memory page file, system protection maximum storage space size, and hibernation files. The location of the files on the hard drive plays a big part here because these files are marked as unmovable. Disk Management is unable to relocate them. If these files are located in the middle of the total amount of free space on the disk, then only the free space on the other side (usually its right side) can be used to create a new partition. And the same situation like before appears. What’s worse, even though there are no obstructive unmovable files, you can only shrink half space of the total amount with Disk Management.
It is time to turn to third-party partition manager when Windows snap-in programs won’t work. You can try AOMEI Partition Assistant Standard (free) which can relocate those files without damaging any of them. It is an all-around and comprehensive application that integrates simple-to-handle options for disk and partition management. The Standard edition is a freeware that has earned good reputation among worldwide users. It can also be used to shrink C drive in VM machine.
To shrink C drive in Windows Server like Server 2003, Server 2008, Server 2012, Server 2016, etc, you can refer to AOMEI Partition Assistant Server edition.
Step1. Download, install and run this software. Right-click C drive and select "Resize Partition" or select this option in the left panel (you can see the free space of C drive is 29.87 GB).
Step2. Type in the amount of space or drag the double-headed arrow to resize.
Step3. A gray unallocated space just behind C drive, click "Apply" to execute operations.
Notes:
Tips: To shrink C drive and extend D drive, you can select "Merge Partitions" to add the generated unallocated space to D drive. This method also applies to shrink D drive and expand C.
To sum up, AOMEI Partition Assistant can help you do the task that the built-in tool can’t. Another way to make use of space in C drive is create partition in C drive directly. For more information, see how to partition C drive. Except for shrinking C drive more than half space, you can use it to move partition, merge partitions, copy disk, migrate OS from MBR disk to MBR SSD or disk, and more advanced function, command line partition.
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