How to change partition size on Windows Server 2008 (R2)?
The disk partition are created when building the server, but after running the server for a period of time, you’ll find that the disk partition layout is not the best. The typical issue is about system C drive – it created not big enough, now C drive is running out of space, so not enough free space to keep server running smoothly or install updates. Some other people forget to edit partition size when installing Operating System, so the system C drive uses all available disk space. We know, it is not a good idea to use single system partition and put everything into it. Luckily, you can re-size the existing partitions without reinstalling operating system. Today I’ll give show you how to change partition size in Windows Server 2008 (R2) without data loss.
Some people want to increase C drive space, while others want to decrease partition size, so in this article I want to divide the tutorial into several sections.
- Decrease size of a partition
- Increase size of a partition
- Reallocate free space between 2 drives
- Split a partition
- Merge 2 partitions
Change partition size 1 – Decrease partition size
If system C drive or any data drive was created too large, you can decrease its partition size directly (reboot is required)
Step 2: In the pop-up window, drag left or right border to shrink this drive. If you drag left border rightwards, the Unallocated space will be created at left side of this drive.
Step 3: Press Apply on top left to execute. As you see, 15 GB free space took out from drive D. It reduced from 40 GB to 25 GB.
Change partition size 2 – Increase partition size
When there is Unallocated space behind a drive, you can increase size of this drive by holding the Unallocated space.
Step 1: Right click C drive and select “Resize Partition”.
Step 2: In the pop-up window, drat the right border rightwards to hold the Unallocated space.
Step 3: Click OK and back to the main window, press Apply to execute. As you see, C drive size increased by adding the Unallocated space.
Change partition size 3 – Reallocate free space
If you want to extend a drive, but there is no adjacent Unallocated space at right side, you can rob free space from other drives in the same disk directly, no matter if the partitions are adjacent or not.
Step 1: Right click the drive that has plenty of free space and select “Allocate Free Space”.
Step 2: In the pop-up window, type the amount and select the drive you want to expand.
C drive space increased by taking 15 GB free space from D.
Change partition size 4 – Split partition
Split partition is useful for the people who want to shrink a large drive and create new drive with free space in it. With this feature, you can cut original drive to smaller ones directly and keep files intact.
Step 1: Right click the drive you want to divide and select “Split Partition”.
Step 2: In the pop-up window, original drive will be divided from the middle, you may keep the default setting or drag the middle line to modify.
Original drive E was divided into a smaller E and another new drive I.
Change partition size 5 – Merge partitions
Merge partition is useful when there are too many drives and make it hard to identify.
Step 1: Right click a drive and select “Merge Partitions”.
Step 2: In the pop up window, click the check-box in front of the drive.
Drive E merged into D, all files in E moved into a folder in D.
In this article, I introduced several ways to change partition size in Windows Server 2008 (R2) without data loss. Open your server Disk Management to find out the disk partition layout, decide how you want to change partition size for this 2008 server, follow the method above and you can easily complete this task. If you have any other idea to change size of a partition, leave a comment.