Hi I own a HP notebook that came with an operating system Windows 7 32-bit professional. And also I bought a Windows 7 Ultimate 64-bit. To install it I make formation with HD and installed the new operating system that works correctly. But now I have to reinstall the old system to 32 bit, therefore I was going to do a dual boot with W7 64bit and 32bit in order to take advantage of both operating systems. To do this, I partitioned HD through INSTRUMENTS administration-computer management-disk management. My HD is now partitioned into three volumes: SYSTEM, C: with windows 7 64 bit and a third volume D: dynamic. Now when I insert the Windows CD 7 32-bit and launch the installer and run the custom, when I go to decide where to install the volume, i.e. in this I get the following message: '' Unable to install Windows in this space on your hard drive. This partition contains one or more dynamic volumes are supported for installation'' So I cannot continue with the installation. How do I solve this problem?