virtualbox.org

Using VBox 4.04, I have a Windows XP guest that uses 100% CPU even when idle. I've Googled and seemingly read every post I could find, and I see mentions of this problem prior to version 4, but I don't think that I have seen any relating to 4.x.

I have tried setting core affinity, different NICs, IO/APIC settings, single CPU settings, etc to no avail.

This was a physical Windows XP machine that was converted to a VMDK.

What's interesting is that I have a number of other machines converted the same way without any issues.

Has anyone else seen this issue?

Still conversion does bring its own baggage. Try to isolated it down by shutting off 3D/2D, audio, USB, Serial, and Network one-at-a-time to see if you can isolate it. Also is it the hosts CPU that shows 100% or the guests or both? Also do you see any devices in the device manager that has a mark telling you is is causing problems?

RAM Host / Guest?