Active

 

Updated: April 17, 2012

Applies To: Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows Server 2012 R2, Windows Server 2012, Windows 8

On basic disks, marks the partition with focus as active.

System_CAPS_cautionCaution

DiskPart verifies only that the partition is capable of containing the operating system startup files. DiskPart does not check the contents of the partition. If you mistakenly mark a partition as active and it does not contain the operating system startup files, your computer might not start.

active

  • This informs the basic input/output system (BIOS) or Extensible Firmware Interface (EFI) that the partition or volume is a valid system partition or system volume.

  • Only partitions can be marked as active.

  • A partition must be selected for this operation to succeed. Use the select partition command to select a partition and shift the focus to it.

To mark the partition with focus as the active partition, type:

active
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