Thank you, at the end Microsoft wrote about this problem.
I am very happy for your link


Thans again
MarcusB


Matthijs ten Seldam [MSFT] wrote:
> The first issue may be due to this issue:
> http://support.microsoft.com/default.aspx/kb/950792
>
> Don't know for sure, just guessing.
>
> Matthijs
>
>
> "MarcusB" wrote:
>
>> For me the only second way is working. First update and later add
>> Hyper-V role. The first way update is stoping after 54%
>>
>>
>> MarcusB
>>
>> Paul Adare wrote:
>>> On Wed, 2 Apr 2008 10:08:04 +1100, Bill Grant wrote:
>>>
>>>> Well the "without Hyper-V" is a bit of a giveaway!
>>>>
>>>> That KB is an update to Hyper-V. It won't do much on a system without
>>>> Hyper-V.
>>> Sorry to jump in here, but this isn't the case. You can update to the RC
>>> one of two ways:
>>>
>>> 1. Install the Hyper-V role and then install the update.
>>> 2. Install the update and then install the Hyper-V role.
>>>
>>> I've done it both ways and both work equally well. If the OP is using
>>> Server 2008 RTM then the Hyper-V role should appear in the list of
>>> available roles regardless of whether or not the KB update has been
>>> installed.
>>> The installation of the KB does not install the Hyper-V role, but it will
>>> cause the Hyper-V role to be at RC0 if one runs the Add Roles wizard after
>>> the KB is installed.
>>> I'm guessing that the OP hasn't actually installed the role yet, though
>>> that is a little unclear. If that is the case, and the KB has already been
>>> installed then all he needs to do at this point is to add the role and
>>> he'll be at RC0.
>>>