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New Local Disk (Z:) appeared?

Bobthebass

New Member
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?


Bob

disks.jpg

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 :

Z:\EFI\Microsoft
Z:\EFI\HP
 
Last edited:

My Computer

System One

  • OS
    8.1
    Computer type
    Laptop
    System Manufacturer/Model
    HP
    CPU
    A6-5200
    Memory
    8 GB
    Graphics Card(s)
    Radeon HD 8400
    Browser
    Opera, FF, Chrome
    Antivirus
    Avast

Bobthebass

New Member
Why has it suddenly appeared as Z?

And can I hide it again?
 

My Computer

System One

  • OS
    8.1
    Computer type
    Laptop
    System Manufacturer/Model
    HP
    CPU
    A6-5200
    Memory
    8 GB
    Graphics Card(s)
    Radeon HD 8400
    Browser
    Opera, FF, Chrome
    Antivirus
    Avast

TrustMe

Member
Member
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 Computer

System One

  • OS
    Windows 8 Pro

Bobthebass

New Member
I don't recall installing anything.
 

My Computer

System One

  • OS
    8.1
    Computer type
    Laptop
    System Manufacturer/Model
    HP
    CPU
    A6-5200
    Memory
    8 GB
    Graphics Card(s)
    Radeon HD 8400
    Browser
    Opera, FF, Chrome
    Antivirus
    Avast

exitguy

Member
Member
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 Computer

System One

  • OS
    Win8.1 Pro x32 (DT) & Win8.1 x32 (T)
    Computer type
    PC/Desktop
    System Manufacturer/Model
    HP Pro 3000 SFF & ASUS T100

Bobthebass

New Member
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 Computer

System One

  • OS
    8.1
    Computer type
    Laptop
    System Manufacturer/Model
    HP
    CPU
    A6-5200
    Memory
    8 GB
    Graphics Card(s)
    Radeon HD 8400
    Browser
    Opera, FF, Chrome
    Antivirus
    Avast

jumanji

Member
Member
It is by now almost established that HP Support Assistant is responsible for the creation of this mysterious Local drive Z:. On my new HP laptop running Windows 10 64bit , which I am still setting up - I have just completed all updates including the Anniversary Update. I had created a manual System Restore point "after all the updates" and was in the process of installing the applications. At this point I ran HP Support Assistant but closed it midway as its analysis was taking a long time and it was late night yesterday/early morning today . ( I went to bed after midnight :D )

Normally I do not click on "My Pc" but after a few hours, rather a few hours back I just did that and saw the Z: drive. My web search confirmed that it is the HP Support Assistant the culprit. I restored my system to the restore point I created "after all updates" and the Z; drive vanished.

During the web search I came across this interesting youtube video. ( Basically it just hides the drive but in some cases it appears to be reappearing. The permanent solution: if you can't put up with it, uninstall the HP Support Assistant.)

[video=youtube;cj7XcaoGJm0]https://www.youtube.com/watch?v=cj7XcaoGJm0[/video]
 

My Computer

System One

  • OS
    Windows 7 Ultimate 32bit

Josbeph

New Member
Don't mess as samuria said, it is the boot partition.
 

My Computer

System One

  • OS
    Windows 8.1 Home x64
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Custom PC
    CPU
    Intel Core i3-2120 3.30GHz (OC to 4.80GHz)
    Motherboard
    ASRock H61M-VG3
    Memory
    4gb DDR3-1366
    Graphics Card(s)
    AMD Radeon HD 7500 series
    Sound Card
    Built in
    Monitor(s) Displays
    Acer V246HL
    Screen Resolution
    1920x1080
    Hard Drives
    WDC WD10EZEX-00BN5A0
    ST3250310AS
    PSU
    Generic 500watt
    Case
    Unknown
    Cooling
    Intel Stock CPU Cooler and Deepcool 120mm Blue LED front case fan
    Keyboard
    ARES K5
    Mouse
    Corsair Gaming KATAR
    Internet Speed
    BT Infinity 2 75mbs
    Browser
    Google Chrome
    Antivirus
    None
    Other Info
    Router: BT Smart Hub 6
    Printer: Epson L355

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