Article ID: 000090581 Content Type: Troubleshooting Last Reviewed: 04/27/2022

Unsupported System Drive: Last Partition Unable to Resize Error


Windows 10/11 64bit Intel Optane Memory


Method to resolve "Unable to Resize Last Partition" errors when enabling system acceleration with Intel® Optane™ memory.


Enabling acceleration fails with an error stating the last partition cannot be resized.


During the enabling process for system acceleration with Intel® Optane™ memory, the system tries to utilize 5MB of space at the end of the SSD for metadata. Metadata is identifying information that helps the system recognize a drive that is paired, combined to look like one drive, with the Intel Optane memory module.

This error means that the enabling software was unable to create this space for the metadata. This may be due to not enough free space on the drive being accelerated, or a locked partition at the end of the drive.

  • Before proceeding, it is recommended to back up all data.
  • Links provided to third-party tools and sites are for your convenience. Intel does not necessarily endorse the content, products, or services offered and does not offer support for third-party tools.
  • If the recovery partition at the end of your system disk is from your original equipment manufacturer (OEM) or motherboard vendor, it is suggested you work with them before proceeding.


Resolve with the following steps:

  1. Download an application that is able to resize partitions, below are some examples:
    ApplicationHelp Guide
    AOMEI Partition Assistant*Help guide on how to shrink a partition (Case 2)
    IM-Magic Partition Resizer*Help guide on how to shrink a partition
    Macrorit Disk Partition Expert*Help guide on how to shrink a partition
  2. Resize (shrink) the partition to create at least 5MB of unallocated space at the end of the targeted drive.



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