Upgrading Processor On Windows Server 2008 R2 64 Bit

I have a site that will be upgraded from a 4 core, non-hyperthreaded Xeon to a 6 core hyperthreaded Xeon processor. I know Windows XP/Server 2003 had a Hardware Abstraction Layer (HAL) that presented challenges when upgrading processors. Does Server 2008 R2 64 bit have the same issue or will it automatically identify the hardware change without issue upon boot?


Should automatically recognize hardware. Be forewarned; you may need to reactivate windows (if the O/S senses too many hardware changes it will ask for a reactivation)

Thank you for confirming the hardware recognition without issue. I'm not as worried about reactivating Windows. Been through that enough times -- swap out a video card and your fine, swap out a motherboard and there are too many hardware changes.