[cameron]

http://support.microsoft.com/kb/967482/en-us
так что волноваться, в общем-то, не о чём.

To successfully update all partititions, the current logged on user needs to be a member of Enterprise Admins group. If that is not the case, please correct th e problem, and then restart Adprep. »

покажите вывод
whoami /groups

[NRMS]

Учетная запись под которой выполняете должна входить в группу "Администраторы предприятия"

[mvohid]

выполняю по админом.
результаты whoami /groups

C:\Users\administrator.domen\adprep 2008R2>whoami /groups

GROUP INFORMATION
-----------------

Group Name Type SID
Attributes

============================================ ================ ==================
========================== =====================================================
==========
Everyone Well-known group S-1-1-0
Mandatory group, Enabled by default, Enabled group

BUILTIN\Administrators Alias S-1-5-32-544
Mandatory group, Enabled by default, Enabled group, G
roup owner
BUILTIN\Remote Desktop Users Alias S-1-5-32-555
Mandatory group, Enabled by default, Enabled group

BUILTIN\Users Alias S-1-5-32-545
Mandatory group, Enabled by default, Enabled group

BUILTIN\Pre-Windows 2000 Compatible Access Alias S-1-5-32-554
Mandatory group, Enabled by default, Enabled group

NT AUTHORITY\INTERACTIVE Well-known group S-1-5-4
Mandatory group, Enabled by default, Enabled group

NT AUTHORITY\Authenticated Users Well-known group S-1-5-11
Mandatory group, Enabled by default, Enabled group

NT AUTHORITY\This Organization Well-known group S-1-5-15
Mandatory group, Enabled by default, Enabled group

LOCAL Well-known group S-1-2-0
Mandatory group, Enabled by default, Enabled group

domen\Group Policy Creator Owners Group S-1-5-21-146794427
9-327693325-4125921288-520 Mandatory group, Enabled by default, Enabled group

domen\Domain Admins Group S-1-5-21-146794427
9-327693325-4125921288-512 Mandatory group, Enabled by default, Enabled group

domen\Schema Admins Group S-1-5-21-146794427
9-327693325-4125921288-518 Mandatory group, Enabled by default, Enabled group

domen\Enterprise Admins Group S-1-5-21-146794427
9-327693325-4125921288-519 Mandatory group, Enabled by default, Enabled group

domen\Denied RODC Password Replication Group Alias S-1-5-21-146794427
9-327693325-4125921288-572 Mandatory group, Enabled by default, Enabled group

Mandatory Label\High Mandatory Level Unknown SID type S-1-16-12288
Mandatory group, Enabled by default, Enabled group, L
ocal Group

C:\Users\