Windows 8 and 8.1 Forums

New Local Disk (Z:) appeared?

  1. #1

    New Local Disk (Z:) appeared?

    Sometime in the last few days, a new drive seems to have appeared in This PC.

    The new drive is Local Disk (Z: ) and is 256 MB in size (162 free). I do not have access to the drive.

    The drive does NOT appear in Disk Management.

    Googling suggested it might be a mapped temp folder, but SUBST showed up nothing.

    As for as I can recall I haven't installed anything recently.

    I am running virus and malware scans at the moment.

    Any suggestions?


    Click image for larger version

    UPDATE: Although I cannot access the drive myself, I could see some of the folder names as Avast scanned it. It has folders such as :

    Last edited by Bobthebass; 12 Sep 2016 at 16:14.

      My System SpecsSystem Spec

  2. #2

    Its the efi boot drive dont mess with it or it wont boot
      My System SpecsSystem Spec

  3. #3

    Why has it suddenly appeared as Z?

    And can I hide it again?
      My System SpecsSystem Spec

  4. #4

    Posts : 99
    Windows 8 Pro

    Yes, just hide the drive, and as samuria suggested, don't mess with it. As for why, I don't know, but there have been a lot of posts lately here and in the Windows 10 Forum with the same thing happening.
      My System SpecsSystem Spec

  5. #5

    Posts : 36

    That should not have just happened on it's own, did you install something right before this?
      My System SpecsSystem Spec

  6. #6

    I don't recall installing anything.
      My System SpecsSystem Spec

  7. #7

    Melbourne Australia
    Posts : 11
    Win8.1 Pro x32 (DT) & Win8.1 x32 (T)

    Quote Originally Posted by Bobthebass View Post
    I don't recall installing anything.
    You probably have HP Support Assistant enabled ?? - I know that if you have it enabled or start it then it shows the Z: drive, which will disappear on a re-boot. p.s. have a HP EliteDesk800 G1 and Support Assistant comes with the pre-loaded HP software
      My System SpecsSystem Spec

  8. #8

    Ah - I do have HP Support on the PC. That probably explains it.

    But it just seems a bit strange that it hasn't done this in 2,5 years before. Although I have a vague recollection that HP Support maybe had an update in the last couple of months.

    And in my case, Z is not disappearing on reboot.

    Any harm in disabling the HP Support to see if rebooting then makes Z disappear again?
      My System SpecsSystem Spec

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