Windows 10 1511 Stable Release UAC Disabled Disabled UAC I have a C: and an M: mounted from another Windows Machine


I can view, edit & delete contents of M: without any issues when using Windows Explorer

But when i try to access the same via command prompt

M: or cd M: both have same error

I got the following error "The System Cannot Find the file Specified"

Error Screenshot


i have many batch scripts that relies on the M: drive and they don't work anymore

What i have tried so Far

  1. Rebooted the machines
  • CMD with admin right or not? – PetSerAl Apr 26 '16 at 18:39
  • Yes attached screenshot of the error, Also UAC disabled so CMD opens as Administrator even regularly, but same way issue when i right click and select "run As administrator" – SeanClt Apr 26 '16 at 18:39
  • Are you sure that UAC disabled, but not in auto-allow mode? – PetSerAl Apr 26 '16 at 18:42
  • Have you tried "cd M:"? – InterLinked Apr 26 '16 at 19:27
  • yes cd M: same result attached screenshot of UAC – SeanClt Apr 26 '16 at 19:43

So even thought i had disabled UAC from Control Panel > User Accounts > Change User Account Control Settings to Never Notify but it still didn't help

I had to disable the UAC from registry, this i remember from working on a HP software where it specifically told to disable from registry


In the details pane (Right Pane)

locate the EnableLUA key (REG_DWORD type).

Double click to Modify.

In the Value data box, type 0 (zero),

and then click OK.

restart the computer.

  • this breaks the new store apps, this is why moving slider down since Win8 no longer disables UAC completely. – magicandre1981 Apr 27 '16 at 4:26
  • Can you provide specifics which app broke it so i can test that as well? I don't use much apps but still would like to confirm – SeanClt Apr 27 '16 at 12:52
  • All apps from the Windows store don't work if UAC is disabled via EnableLUA set to 0. – magicandre1981 Apr 27 '16 at 15:36

I would recommend checking whether Command Prompt can recognize it or not by using the diskpart command and then list volume.

It will show all activated drives on your Windows computer that Command Prompt can recognize.

list volume

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