I currently have a single 1TB HD containing two bootable partitions each running a copy of Win7 Ultimate on a MacPro 3,1. The disk is formatted using GPT and contains a 200MB EFI partition along with the two booatable NTFS partitions. This setup has been working fine but it's time to increase the size of the partitions. I bought a WD WD20EARX (2 TB) and used Acronis True Image Home 2012 to clone the old drive onto the new drive and manually expanded the partition sizes to 1.2TB and .6TB respectively. The clone operation succeeded but when I boot the MacPro and hold down the option key to select which system to boot, the Mac does not recognize the new drive as bootable. In the past when I was on XP I remember having to run the Windows recovery tools to patch up the master boot record to get things working again. However, when I try to run Win7's recovery tools it complains with the following "This version of system recovery options is not compatible with the version of Windows you are trying to repair." I'm not sure if this is MacPro specific or not but wondered if anyone else has navigated these waters before...