I've just installed a 2008 R2 and ran Windows Update multiple times until nothing showed up anymore. No roles have been added yet, and no additional software has been installed. The machine has joined a domain.
- Can I safely backup the VHD file and later restore it?
- Can I use it as a base VHD for new VMs? Can I safely create new Virtual Machines from copies of VHD without sysprep? suggests it shouldn't be done, however as mentioned above there is no additional software installed.