15276: Acronis backup software: installation fails with "Failed to grant priviledge to user" or "Failed to add user to group 'Backup Operators'"

Last update: 30-04-2021


  1. You install an Acronis product and you specify an existing user account(s) for Acronis services.
  2. Installation fails. In installation log (see Creating an MS Installer Log of Acronis Software and Analyzing Installation Logs of Acronis Products Based on MSI Technology) you see a message similar to the following one:
    1: MSIGEN:GrantUserPrivileges: started for user 'Computer\User'
    1: MSIGEN:GrantUserPrivileges: List of priviledges to grant: 'SeServiceLogonRight'
    1: MSIGEN:GrantUserPrivileges: Failed to grant priviledge 'SeServiceLogonRight' to user 'Computer\User' with error code '1780'
    1: MSIGEN:AddExistingUserToServiceUsers: failed
    Action ended 13:09:50: InstallFinalize. Return value 3.

    or you receive a warning from the installation wizard that it was impossible to grant the necessary rights to the specified account.
    Or this one:
    MsiManagedMachineServiceInstall:Error 0xf50009: Failed to add existing user 'administrator' to service users.
    | line: 0xd2c4f13c2d5bfdaa
    | file: d:\375\inst_supp\msi_supp\user.cpp:685
    | function: AddExistingUserToServiceUsers
    | $module: custom_actions_msp_vsa64_s_23094
    | error 0xf50002: Failed to add user 'administrator' to group 'Backup Operators'.
    | line: 0xd2c4f13c2d5bfb74
    | file: d:\375\inst_supp\msi_supp\user.cpp:119
    | function: `anonymous-namespace'::AddUserToGroups
    | $module: custom_actions_msp_vsa64_s_23094


The setup program cannot assign the necessary rights to existing account(s).


Add the necessary rights to the user account manually. See appropriate section:

For "Failed to grant privilege to user"

After adding the necessary rights, reattempt the installation.

For "Failed to add user to group 'Backup Operators'"

Manually add the affected user to the "Backup Operators" group:

  1. Click Search, type in compmgmt.msc and press Enter.
  2. Computer Management opens. Navigate to Local Users and Groups, click Groups, then double-click Backup Operators on in the right hand side.
  3. In the Properties window, click Add.
  4. In Enter the object names to select, type the affected user' username and click Check names.
  5. Click OK and save changes.

More information

See also: