IIS Installation broken (reboot pending)

IIS Installation broken (reboot pending)

Every time i want to Install the IIS role on a server it reports the
following:
The request to add or remove features on the specific server failed.
The operation cannot be completed, because the server that you specified
requires a restart.
After a reboot the game starts again.
The IIS role WAS already installed on this server and got removed after
some configuration issues, I could not get rid of. No I am unable to
reinstall it again... Other roles on this Servers are: Domain Controller,
DNS, DHCP, NAP.
The ISS is used to invoke a DNS/DHCP Update Script from a web page to keep
DHCP and DNS entries on all servers up to date, and manage static entries
ect... (DHCP will be replaced soon by Microsoft own feature)
There are not entries in the eventlog regarding this error at all or which
could provide any useful data.
Any Ideas?
PS: (I Exported the configuration settings, but I relay have no Idea how
to use that XML file afterwards :)
EDIT: This Waring shows up 3 Times in the eventlog.
A provider, WebAdministrationProvider, has been registered in the Windows
Management Instrumentation namespace Root\WebAdministration to use the
LocalSystem account. This account is privileged and the provider may cause
a security violation if it does not correctly impersonate user requests.
And i just found this Logfile C:\Windows\Logs\CBS\CBS.log (it's a bit to
big for Pastebin, so i need to improvise) Part 2 Part 3 Part 4
Maybe this is helpful?