Skip to content

HP SupportAssist “System (Z:)”

Are you having issues with your HP device (Laptop, Desktop, All in One, etc) and inability to access a previously mapped network drive labelled Z:

TechCare System Z:

Recently a client¬†contacted me with his mapped network drive missing. So I did what every other good IT technician does and just googled any type of keywords I could about it. Well it was a rabbit hole full of opinions and what worked for one person didn’t work for many others.

Here is my quick run down and hopefully the fix for your issue if you have the same as my client did this past week.

Apparently it has something to do with HP Support Assist and how it installs various software that it downloads or actually uses itself. Suffice it to say that it creates a RAM Disk and labels it “System Z:”

Well that probably doesn’t affect most users, but if you do use Z: for anything else it does. Because after every restart your mapped network drive doesn’t remap, but rather the RAM Disk used by HP Support Assist does.

So the fix?

I found it obscurely placed over on HP’s Community forum.

  1. Open up Command Prompt or PowerShell in Administrator mode
  2. Type in = “mountvol Z:\ /D
  3. Press enter
  • mountvol = the command used by CMD or PowerShell
  • Z: = the drive letter in use
  • /D = delete

After running this and restarting at least twice I was no longer presented with a “System (Z:)” drive, but rather just my C:

At this point I promptly added back the Mapped Network Drive and all is well in the wide world of IT again.

FYI things I tried prior to this that DIDN’T WORK!

  1. Adding 2x registry settings called “NoDisk” with an obscure value – FAILED
  2. Running HP Support Assist and attempting to get it to clear itself – FAILED
  3. Removing HP Support Assist – FAILED
  4. Using diskpart and removing the drive letter, it would just re-add itself on boot – FAILED

Check out our other posts

Windows 11 Installation - Select Sign In Options

Local User on Windows 11 Professional

Welcome to another short tutorial to demonstrate how to setup a new Windows 11 Professional installation (New PC or fresh install) using a Local User account rather than a Microsoft
Read More
Report Message

M365 Apps – Report Message

End Users This guide assumes your M365 Administrator has enabled the Microsoft App for 365 tenants called Report Message. It will allow you to quickly report an email that is
Read More
Outlook - New Email - Send

Microsoft 365 – Send as alias

Ever wanted to send emails from a domain other than your primary domain? Microsoft, the well known software company that gave us Windows, has recently added this capability to their
Read More

TC Hosting – SSH Keys

How to use cPanel SSH Keys to create a secure connection with your host.
Read More

Ready to get a best solution for your business?

Use the form provided on the contact page or for any urgent requests please call us 08 6146 5344