We have a new computer, and I am a bit confused from its new features I don't know from older hardware. It is a high end PC based on socket 2011. I want to use an SSD disk for operating system, and I want to install there a multiboot with Windows 7 x64 and Windows Server 2008 R2. So I put this new SSD disk into this new computer, put Windows 7 DVD into drive, and installed. I split the drive into 2 partitions during installation of W7 to let me install WinServer later. W7 works perfectly, no problems.
But now I insterted Windows Server installation DVD, and I want to install it to the second partition. But the installation DVD doesn't want to install the system and complains that Windows Server 2008 R2 cannot be installed on disk drives with MBR on EFI computers. It shows correctly the SSD disk with its three partitions (one hidden small 100 MB as used in all W7 installations, then W7 partitons, and one empty partition where I want to put my new Windows Server installation), but it simply refuses to install itself in there. How to solve this problem?
I have a working W7 installed on that disk, is it possible to move it to GPT without losing that partition? And if that's not possible, how can I install W7 to an empty SSD disk and force it to GPT on installation? I am affraid it get a MBR automatically without user intervention. Or should I put this SSD disk to anotehr W7 computer and use its standard Windows disk drive manager to put there a GPT?