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. Luckily, you can resize allocated partitions without reinstalling Operating System, no matter you want to change size of system partition or a data volume. To change partition size in Windows Server 2008, there are 3 common tools.

1. Change partition size with diskpart command prompt

Diskpart is an EXE tool running from command prompt, it has many commands for entire disk and single partition. If you want to change size of allocated partition, there are Shrink and Extend commands. They are able to resize partitions without losing data, but not all partitions can be resized.

Limitations of diskpart to resize Server 2008 partition

  1. It only support resizing NTFS partitions, the size of FAT32 partitions can’t be changed.
  2. It cannot or can only shrink little space in some environment.
  3. Unallocated space can only be made on the right side after shrinking partition.
  4. Unallocated space can’t be added to the right adjacent or any non-contiguous partition.

Diskpart Extend

2. Change partition size in Server 2008 Disk Management

Better than previous Server 2003, Windows Server 2008 (R2) has new Shrink Volume and Extend Volume functions built in Disk Management console. Unlike diskpart command, Disk Management has graphical interface and each function works with a wizard window.

The benefit is resizing partition without losing data and on the fly, but it has same limitations with diskpart command. If you want to shrink a NTFS partition to create new, Disk Management can help you in most cases. But if you want to extend a partition, it is not the best choice, because Extend Volume is always grayed out after shrinking a partition.

Press Windows and R keys together, type diskmgmt.msc and press Enter, then Disk Management will be opened.

3. Change partition size with NIUBI Partition Editor

Comparing with diskpart and Disk Management, NIUBI Partition Editor is much more powerful.

  1. It is able to shrink and extend both NTFS and FAT32 partitions.
  2. It is able to make Unallocated space on either left or right side while shrinking a partition.
  3. It is able to merge Unallocated space to either contiguous partition by 1 step.
  4. It is able to move and merge Unallocated space to any non-adjacent partition on the same disk.
  5. If there’s no available free space in a disk, it helps you copy to a larger one and repartition with additional disk space.

There are many other software that can help change partition size for Windows 2008 server, but NIUBI is much safer and faster because of its unique technologies:

  • Virtual Mode – if you did something wrong, simply click Undo to cancel the pending operations, nothing will be changed until click Apply to confirm.
  • Cancel-at-well – if you confirmed and started some incorrect operations, you can cancel the ongoing operations at any progress in a flash.
  • 1-Second Rollback – it is able to automatically reverts server to original status in a flash if any error occur while resizing partitions. In that case, your server could back online without modification in a short time.
  • 30% to 300% faster because of the advanced file-moving algorithm.

Watch the video how to change partition size in Windows Server 2008 (R2):

Change sizeBesides resizing partitions, it helps you copy, convert, defrag, wipe, hide partition, scan bad sectors and much more.

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