I have a curious experience which i do not understand so thought I'd ask for
some assistance. Basically I get slow running guest OS in VPC 2007 SP1 64 bit
when running on Windows Server standard 2008 64 bit. The synopsis is as
follows:
I have a fresh install of Windows 2008 standard SP1 64 bit as I was going to
test out Hyper-V. I enabled hardware DEP and Virtualization Technologies in
the BIOS and Hyper-V runs lovely and with fast guests OS's. Good with server
guests but no sound support and only 16bit colour.
However, I have an XP Pro SP3 32 bit guest (that I've been using for
sometime in VPC 2007 on another host) that I want 32 bit colour and sound so
I thought I'd install Virtual PC 2007 SP1 64 bit and try it out on that, my
thinking was to use Hyper-V for server guests and VPC for client guests on
the same Win 2K8 host.
I noticed that VPC runs the guest but it is painfully slow and it does not
recognise 'Hardware Virtualization' in the VPC Options dialog - it i greyed
out (but I have it turned on in the BIOS). After some experiments, I found
that if I leave Hardware Visualization enabled in the BIOS but disable
Hardware DEP in the BIOS, then the VPC recognises Hardware Virtualisation and
the guest runs really fast (faster than expected in fact
). However,
without DEP, Hyper-V won't run.
My question is, how do I get Virtual PC 2007 SP1 64 bit to run on a
'Hardware DEP' enabled machine running Windows Server 2008 SP1 64 bit?
Note, I was running Vista Ultimate 32 bit on the same hardware before with
both Hardware DEP enabled and Hardware Virtualization enabled in the BIOS and
VPC 2007 SP1 worked brilliantly - suggesting that the hardware/BIOS is
working properly.
Note 2, Virtual Machine additions is installed in the guest OS.
Ideally I'd like to enable Hardware DEP and Hardware Visualization to run
both Hyper-V and VPC simultaneously.
Thanks in advance
Ian