cancel
Showing results for 
Search instead for 
Did you mean: 
  • ×
    Information
    Fix Windows 10 Update Issues

    Resolve Windows 10 or update issues on HP computer or printer– Click Here

  • post a message
  • ×
    Information
    Fix Windows 10 Update Issues

    Resolve Windows 10 or update issues on HP computer or printer– Click Here

  • post a message
Highlighted
New member
1 0 0 0
Message 1 of 9
2,925
Flag Post

Solved!

system Z drive

HP Recommended
pavillion 500-164
Microsoft Windows 10 (64-bit)

when I downloaded windows 10 everything was fine, 1 month before the anniversary update to windows 10 system Z showed up. After the anniversary update it went away. Today is Friday I noticed that system z is back, I have not had any updates or have I downloaded anything. Could this be a drive that is storing information on how I use the computer, and is it only on HP computers? It doesnt show up as a virus or a trojan, and it is 356mb with 301 mb free, using 55mb..

8 REPLIES 8
Highlighted
Level 19
Level 19
84,788 84,675 10,710 22,963
Message 2 of 9
Flag Post
HP Recommended

Hi,

 

From time to time, Microsoft may create a drive called Z: to keep information for the update/upgrade process. Drive Z: may appear then disappear. Microsoft should tell people about this or hide it as default.

 

Regards.

BH
***
**Click the KUDOS thumb up on the left to say 'Thanks'**
Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

Highlighted
New member
5 5 0 0
Message 3 of 9
Flag Post
HP Recommended

I had this Z Drive appear on my PC a few weeks ago and performed a system restore to get rid of it. It stayed away for a while until the next time  "HP Support Assistant" ran a system check for updates, etc, and as soon as it was finished, the  Z  drive reappeared. I got rid of it again but after every HP scan, it returns, so it is definately coming from that, though what it's for is anyone's guess.

0 Kudos
Highlighted
Level 12
11,043 11,017 577 1,661
Message 4 of 9
Flag Post
HP Recommended

>  as soon as it was finished, the  Z  drive reappeared. I got rid of it again but after every HP scan, it returns, so it is definitely coming from that, though what it's for is anyone's guess.

 

I guess that the HP Support Assistant downloads one large file from HP's web-site,

and "borrows" some of the computer's RAM (356 MB),  and creates a "RAM-disk", and assigns 'Z:' to it.

The S.A. then "unpacks" that one file onto the 'Z:' drive, building files & folders on the RAM-disk.

Voila!  You now have a "system tools" (virtual) disk-drive, with the most-current version of the HP Tools.

 

After the diagnostic tools have completed, it _should_ "destroy" the RAM-disk, and give the 356MB back to Windows for "general" usage.

 

Run a 'CHKDSK Z:' from a command-line prompt -- it will probably run *VERY* *FAST*, because a RAM-disk is much faster than an ordinary "spinning" disk-drive.  Or, run a "custom" virus-scan, targeting the 'Z:' drive.  Again, it will run very quickly, if it is a RAM-disk.

 

0 Kudos
Highlighted
New member
5 5 0 0
Message 5 of 9
Flag Post
HP Recommended

Many thanks for your help, i'll try what you suggested whenever the Z drive turns up again.

0 Kudos
Highlighted
Level 12
11,043 11,017 577 1,661
Message 6 of 9
Flag Post
HP Recommended

> i'll try what you suggested whenever the Z drive turns up again.

 

Did you try it?  Anything to report?

0 Kudos
New member
5 5 0 0
Message 7 of 9
Flag Post
HP Recommended

What I did do, was follow someone else's advice and it has worked every time System Z has appeared, which is whenever the HP Support Assistant has updated. Just type the following text into the search box, run the command, restart your computer and System Z will be gone..........       mountvol Z:\ /D (System Z delete) 

0 Kudos
Highlighted
Level 1
10 6 0 0
Message 8 of 9
Flag Post
HP Recommended

I have had the same problem for a LONG time. My HP 7310xi printer is connected to my Windows 10 computer, through that modem, with an ethernet cable. When I connect to the internet , the printer lights up like a Christmas tree and stops responding. I was blaming it on the printer card reader but have had NO success in solving the problem.

 

I have the same printer connected through the same modem to my Windows 7 machiine with no problems.

0 Kudos
Highlighted
Retired
Retired
20,511 15,846 325 965
Message 9 of 9
Flag Post
HP Recommended

Hello,

Thank you for posting in this thread. Unfortunately based on when the last response was made, I have closed this thread to help keep comments current and up to date. We recommend starting a new thread for your issue by clicking here.
To be more helpful with your post, you can add key information if you desire: 
1. Product Name and Number (please do not post Serial Number)
• Example: HP Pavilion DV2-1209AX or HP Deskjet 3000 Printer CH393A
2. Operating System installed (if applicable)
• Example: Windows XP, Windows Vista 32-bit, Windows 7 64-bit
3. Error message (if any)
• Example: ""Low disk space"" error in Windows
4. Any changes made to your system before the issue occurred
• Examples: Upgrading your Operating System or installing a new software; or installing new hardware like a printer, modem, or router.
If you have any other questions about posting in the community, please feel free to send me a private message!

Thank you


I work on behalf of HP
0 Kudos
Be alert for scammers posting fake support phone numbers and/or email addresses on the community. If you think you have received a fake HP Support message, please report it to us by clicking on "Flag Post".
† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation