I have a system with Windows 7 Pro x64 on it (came with it) with a full Windows 7 Installation DVD. It has a 500 GB drive with an 8 GB RAM. I partitioned it with AOMEI to give me an extra 100 GB primary drive. On this I wanted to install a Windows 8.1 (x64). But it just wouldn't let me. However, It lets me install a Windows 8.1 (32 Bit) OS. Did I or AOMEI goof up the partitioning process? I want to eventually remove Windows 7 and merge its space and move all files required folders/files etc. to the new partition. So what happens about the 64 bit constellation? I know I can always remove Windows 8.1 32Bit as there is nothing else installed as yet and I finally want to have a Windows 8.1 64Bit installation. How do I go about this business now and when it is done, how to get rid of Windows 7 and merge that partition back to have a single partition?