Some people ask me to write an article with detailed steps about how to shrink and extend partition with diskpart command prompt, I don't want to do that, as there are many "guides" about this topic, however, I decide to gather some resources.

Pros of diskpart

  • Free
  • Provides by Microsoft
  • Windows built-in utility

Cons of diskpart

In Windows Server 2003

  • Shrink command is unavailable
  • Only NTFS partition can be extended
  • Only Data drive can be extended
  • The data drive with page file cannot be extended
  • Only when there is free space behind, you can extend this partition.

In Windows Server 2008

  • Only when there is free space behind, you can extend this partition.
  • You cannot extend c drive by shrinking D.

In both Server

  • Hard to use for most of the people
  • Very likely to do incorrect operations
  • No way to cancel or undo

Resources

Note: Diskpart in Windows XP is similar with Server 2003, Diskpart in Windows 7/Vista is similar with Server 2008.

I suggest change partition size with 3rd party partitioning utility, such as partition magic server, aomei partition assistant.

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