The partition begins at n kilobytes if offset is specified, otherwise at the first available space on disk. Disk flags other than 'readonly' may be displayed, but cannot be set or cleared.Īttributes volume Ĭreate a primary partition on the focused basic disk. If no options are given, the current disk flags are displayed. If clear is specified, the flag is unset. The readonly flag indicates that the disk is write-protected ( read-only). Set, clear, or display the attributes (flags) of the selected disk. You cannot assign a drive letter to a recovery partition.Īttributes disk

You cannot assign a drive letter to an ESP partition. You cannot assign a drive letter to any GPT ( GUID partition table) partition, other than a basic data partition. You cannot assign a drive letter to an OEM partition (exception: Windows PE (pre-installation environment). You can only give focus to a partition on the selected disk. For example, when you create a new partition, the focus automatically switches to the new partition. Some commands automatically change the focus. You cannot assign drive letters to boot volumes, or volumes which contain the Windows paging file. For example, if the focus is set on disk 0 and you select volume 8 on disk 2, the focus shifts from disk 0 to disk 2, volume 8. Drive letters assigned to removable drives can be changed. If the drive letter or mounted folder is already in use, the operation fails and reports an error. If no drive letter d or mounted folder path is specified, the next available letter is assigned. Note, this command is not valid in Windows Vista.Īssign Īssign a drive letter or mounted folder pathname to the selected volume. If successful, the selected simple volume becomes a mirrored volume, with the mirror stored in partition n. Partition n must have unallocated space equal to or greater than the size of the selected volume, or the mirror cannot be created. Note, DiskPart does not actually check the contents of the partition to verify that it contains bootable system files.Ĭreate a mirror of the selected disk object at partition n, which must be a simple volume. Note, only partitions on a basic disk (as opposed to a dynamic disk, such as a RAID array) can be marked active. For example, the partition where Microsoft Windows is installed is an active partition. Mark the selected partition as 'active,' indicating to your computer's BIOS or UEFI that this partition contains a bootable system. This option is a potentially dangerous, and should be used with caution. If noerr is specified, DiskPart ignores any errors encountered, and attempt to continue with subsequent operations. Some DiskPart commands accept the noerr option. Most of the following DiskPart commands require you select a disk or partition to give it 'focus.' To view the disks and partitions that can be selected, use the list command.īy default, if DiskPart encounters an error, it will terminate with a non-zero exit status.

Disk 0 partition 1