Hello, I am trying to install Win8, but the installation routine fails when it is time to pull the USB thumb stick and reboot. I have 4 drives (all drives are SATA): 500 GB 7200 HD which is my System partition (XP was installed on this drive years ago) 80 GB SSD boot drive with Win7 brand new 120 GB SSD drive I am trying to install Win8 on 1.5 TB 7200 external drive in an enclosure connected via USB I have been using Win7 booting from an SSD for 2 years, works great. The boot manager comes up with "previous version of Windows" as an option, but I haven't booted into XP in years. I only keep the system partition on that drive because I thought it would be much easier to install new SSDs if they only needed to be boot partitions. I purchased Win8 pro and downloaded it onto a USB thumbstick. I then changed my boot drives in my BIOS to boot from the thumb stick. That worked fine, Win8 installer started up, asked for my Product Key, and started copying files. When it was done, there was a message saying "Please remove your external drive H". Initially I thought H meant my 1.5 TB drive connected via USB (because under Win7, that is drive H), but quickly figured out it wanted me to pull the thumb drive. It rebooted, and then tried 3 times in a row to boot, before telling me there is an error it cannot overcome (Windows 8 installation has failed). I had to go back into the BIOS and turn off the boot sequence which sent it to the Windows Boot Manager first, and revert to my original SSD as the primary boot drive. That worked, Win7 came up like it always did. But then I tried the whole thing again, same problem. As soon as it gets to the point where it asks me to remove the USB stick and reboot, the reboot fails. I contacted MS support and the support rep told me that the only way it would work is if I partition my original SSD which has win7 on it, and then install Win8 to the same drive (but different partition), else do an upgrade install. I can try the same-drive-diff-partition, but the original SSD is only 80 GB, and without having installed any apps on it in the past 2 years, it has grown to 60 GB used space (uninstallers, user directories, win7 fixes, etc.). I could also clone the original SSD to the new 120 GB SSD and partition that, but it would still be pretty close at 60 GB per partition and I would rather not. Is there any way I can get Win8 installed on my brand new SSD and end up with a dual boot sytem with Win7 on my original SSD? System : Intel 3570K CPU Gigabyte Z77X-UD3H mobo 16 GB DDR3 RAM Thanks, BM.