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Virtual PC 2007 slow on x64

my new laptop is with WinXP SP2 x64 on a HP8510p with 4 GB RAM.
Having installed Virtual PC 2007 for x64 my existing Virtual Machines are really slow. They are working but extremly slow.
What's wrong? Double processor speed, double memory but only 35 % performance!!?

Any idea?
Chris

Wolluf

Have you tried creating any new VMs to see if there's a difference?

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and235100

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Gary Case

Do you have hardware virtualization support enabled in the VM's ??

chriswies

ASKER

@Wolluf:
no, I did not

@and235100
not really the solution but may help in the future

@garycase
yes, it is enabled

Chris

Gary Case

With hardware virtualization enabled, the virtual machines should run just fine. I did, however, recreate all of my virtual machines on my Vista x64 system => I don't remember exactly what the issue was, but I found that it was best to build the virtual machines on the 64-bit version of Virtual PC. If your current settings look okay (enough memory; hardware virtualization on for each machine; etc.), then I'd try building a new virtual machine and loading it with whichever OS you'd like and see if that has the performance you're looking for.

chriswies

ASKER

hi there,
buying another product might sound a strange tip.
But I use VMware now and it works very well.
btw: my colleague who created the VirtualPC VMs acutally did it on a X64 machine.
Chris

and235100

Thanks - not a proper solution - but you find the difference between a paid-for product (with proper support) and a "free" one...