What is local disk Z?

I see drive C and drive D, but don't know what local disk Z is . It's 256 mb in size, and about half full. I can't open it to see what's on there since I get a message, "permission denied." It's been there for a long time, but I'm just now getting curious.

thegeriatric said:

I've seen this also, I think you'll find it's a partition of the main "C drive" that shouldn't show. A restart usually gets rid of it for me.
Hope this helps.

I believe you're right, except in my case restarting doesn't change anything. A little more investigating seems to confirm it what you said. Thanks.

{by me, from a related thread} Do not delete it, it's necessary for the computer to start. I have hidden system partitions appear as a Z drive too, usually after doing a virtual drive mount. Here's how to remove the letter from the drive to keep it from appearing under This PC (see screenshot of command prompts) window) -

Win+X/Command Prompt (Admin) {hit enter after each following command, observing spaces and letting each command finish}
diskpart
list volume
select volume # {whichever # is assigned to Z, example is 4, as if that appeared next to Z; eg- 0 to remove E)
remove letter=Z
list volume {not shown, but run to verify letter was removed}

Thanks. Looks easy enough.

I have just seen this local Z disc in my comp. for last few days.
I've scanned it by Malwarebytes.
It found 4 threats in Heuristic scan.
Log file below:

File: 4PUP.Optional.NewTabTV, C:\USERS\\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\LOCAL STORAGE\http_tr.newtabtv.com_0.localstorage, Quarantined, [2593], [359416],1.0.2064PUP.Optional.NewTabTV, C:\USERS\\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\LOCAL STORAGE\http_tr.newtabtv.com_0.localstorage-journal, Quarantined, [2593], [359416],1.0.2064PUP.Optional.NewTabTV, C:\USERS\\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\LOCAL STORAGE\http_search.newtabtvsearch.com_0.localstorage, Quarantined, [2593], [359410],1.0.2064PUP.Optional.NewTabTV, C:\USERS\\APPDATA\LOCAL\GOOGLE\CHROME\USER DATA\DEFAULT\LOCAL STORAGE\http_search.newtabtvsearch.com_0.localstorage-journal, Quarantined, [2593], [359410],1.0.2064Physical Sector: 0(No malicious items detected)(end)

Restart.

And then local Z disc disappears.

:))

^ It is more likely that the HP Support Assistant in your HP Pavilion is creating the Z drive. See Mysterious drive Z: appears!

[emoji106]