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NTFS compression in WinPE 10 uses all available disk space


View products that this article applies to.

Symptoms

Consider the following scenario:
  • You create a partition of 16 gigabytes (GB) on a test system.
  • You format the partition by using the /C switch to enable NTFS compression.
  • You create a bootable USB key in WinPE 10 x64.
  • You copy the “test” WIM files to the USB key.
  • You boot into WinPE on the test system.
  • The partition on the test system is drive C, and the USB key is drive D.
  • You run the following command line:

    dism /apply-image /imagefile:d:\test.swm /swmfile:d:\test*.swm /index:1 /applydir:c:\
In this scenario, DISM fails with error 112.

If you use WinPE 5 x64 in this scenario, you experience the same issue. The WIM file is split to fit on a FAT32 system. The log files are in the wpe5 and wpe10 subfolders.

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Resolution

To work around this issue, we recommend that you do not format the volume by using NTFS compression and instead use WOF compression by specifying /compact to dism when you apply these images. This mitigates the issue and also makes the system runs faster by using a more efficient compression algorithm.

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More Information

We have confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

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Keywords: kb

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Article Info
Article ID : 3198964
Revision : 8
Created on : 5/17/2019
Published on : 5/21/2019
Exists online : False
Views : 427