Windows Server 2008 Hyper-V allows up to four virtual processors in a virtual machine and allows you to configure options on how those virtual processors are balanced across virtual machines. This article describes the options for processor resource control and how to use them.

Hyper-V uses physical processors and cores to provide virtual processors to virtual machines. Each virtual machine starts with a single virtual processor, but you can increase virtual processors to 2 or 4 per virtual machine.

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