Skip to main content

Mount backup: 0x00C40005: a specified logon session does not exist. It may already have been terminated

Thread needs solution

When I verify my backup archive, it says OK.

When I try to mount it (Win 2016), I get:

------------------------------------------------------------------------------------------
Error
------------------------------------------------------------------------------------------
An error has occurred while mounting the selected backup.
------------------------------------------------------------------------------------------
Details:
    Code: 12.845.061(0x00C40005)
<u>LineInfo:</u> 0xFC28F0B681003C9D;

    Module: disk_bundle_vs_50088
    Message: Failed to mount the backup.

    Code: 9(0x00000009)
<u>LineInfo:</u> 0x2372086FE1F2DFEB;

    Module: disk_bundle_vs_50088
    Message: Unknown status.

    Code: 65.520(0x0000FFF0)
<u>LineInfo:</u> 0xBD28FDBD64EDB8EE;

    Module: disk_bundle_vs_50088
    Message: A specified logon session does not exist. It may already have been terminated

------------------------------------------------------------------------------------------

Acronis Knowledge Base: http://kb.acronis.com/errorcode/

Event code: 0x00C40005+0x00000009+0x00000520+0x0000FFF0+0x80070520

0 Users found this helpful
frestogaslorastaswastavewroviwroclolacorashibushurutraciwrubrishabenichikucrijorejenufrilomuwrigaslowrikejawrachosleratiswurelaseriprouobrunoviswosuthitribrepakotritopislivadrauibretisetewrapenuwrapi
Posts: 250
Comments: 7092

Hi!

Welcome to Acronis forums! Most likely the UAC was not disabled properly on the machine you are attempting to mount a backup from. Note that moving the UAC slider from Control Panel does not effectively disable UAC. It has to be disabled from Windows registry:

1) Press start > type CMD >hold shift & right click >Run as administrator 
2) Enter  /k  ADD HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f 
(Here is an article from Microsoft on how to perform it in details: (https://gallery.technet.microsoft.com/Registry-Key-to-Disable-UAC-45d0df25 ) 
3) Reboot the machine 
4) Go to Acronis Management Console and reattempt mounting task

Or set the value manually 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\system -> "EnableLUA" value must be set to 0.

Let me know if that helps.