1.    16 Apr 2016 #1
    Join Date : Oct 2014
    Posts : 940
    Windows 8.1, Win10Pro

    System (Z:) partition suddenly showing up on Win10 PCs


    I'm seeing reports in other forums about folks suddenly having a 256MB FAT32 SYSTEM (Z partition appearing on their PCs!

    One person did mention they had used a VPN app (which might have created this), but none of the others have done anything like that.

    Anyone have any ideas we can investigate??
      My ComputerSystem Spec
  2.    16 Apr 2016 #2
    Join Date : Jun 2015
    Posts : 1,929
    Windows 3.1 to Windows 10

    Z is usually a Virtual Disk
      My ComputerSystem Spec
  3.    16 Apr 2016 #3
    Join Date : Oct 2014
    Posts : 940
    Windows 8.1, Win10Pro
    Thread Starter

    OK ... but folk are wondering how it got there (since they say they did nothing) and when they try to access is or remove it, they get permission denied!
      My ComputerSystem Spec
  4.    16 Apr 2016 #4
    Join Date : Oct 2013
    A Finnish expat in Germany
    Posts : 13,103
    Windows 10 Pro

    Any links to these posts?
      My ComputerSystem Spec
  5.    16 Apr 2016 #5
    Join Date : Aug 2014
    Forever West
    Posts : 3,984
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint

    By default Windows starts assigning the drive letter Z: to Networked drives such as a NAS/Network Attached Storage then works back up the alphabet for additional such drives. I have 2 NAS drives attached to my Router, first one was Z: and the second I added became Y:. All computers working through the Router can access the drives after they are Mapped.
      My ComputerSystem Spec
  6.    16 Apr 2016 #6
    Join Date : Oct 2014
    Posts : 940
    Windows 8.1, Win10Pro
    Thread Starter

    Quote Originally Posted by Kari View Post
    Any links to these posts?
    There are others, but this is one I could find quickly: http://h30434.www3.hp.com/t5/Noteboo...d/td-p/5587307
      My ComputerSystem Spec
  7.    17 Apr 2016 #7
    Join Date : Jul 2014
    Serbia
    Posts : 10,607
    W10 Insider + Linux

    Look at disk management and if it's not there it has to be some virtual or network drive. If it is a partition on disk, you can take it's letter off.
      My ComputersSystem Spec
  8.    17 Apr 2016 #8
    Join Date : Feb 2015
    3rd Rock
    Posts : 819
    WinX Pro x64 IP current

    256 MB is a pretty small partition, if it is physical.
      My ComputersSystem Spec
  9.    17 Apr 2016 #9
    Join Date : Jul 2014
    Serbia
    Posts : 10,607
    W10 Insider + Linux

    Quote Originally Posted by johngalt View Post
    256 MB is a pretty small partition, if it is physical.
    Had one of that size on my SSD and it was for GC and LL and at one time after an update it suddenly got a letter. It was made by program for updating FW on that SSD.
      My ComputersSystem Spec
  10.    17 Apr 2016 #10
    Join Date : Feb 2015
    3rd Rock
    Posts : 819
    WinX Pro x64 IP current

    I know, but auto assigning it a drive letter with such small space is pretty ridiculous. Seems the firmware update package did not mark the partition correctly, as in making it active during reboot so it could flash the firmware, but then making it inactive again so that Windows would not detect it.
      My ComputersSystem Spec

 


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