I bought a pair of SanDisk 4GB SDHC cards in order to try out a portable WES7 installation. Sadly neither of my portable machines (an Acer Aspire 7520 (AMD64AthlonX2) and a Packard Bell dot se (Intel Atom 450)) support booting from the SD Card reader, but I have a USB card reader adapter which enables inserted SD cards to be booted from. On the Acer, I reformatted one of the cards to NTFS, single primary partition (3.68GB), and with boot order set to 1.CD/DVD, 2.USB, 3.HDD - booted from the WES7 32-bit IBW DVD, and proceeded to build the OS for the SD. The system was basically a thin-PC type build with a few extras like .net, but with bootable USB support and SD booting support and the HORM write filter because I don't fully understand these features and want to get to play with them. The build took an age compared to either installing a thin client build to a HD partition or a VM, but eventually it all completed and activated happily with http://forums.mydigitallife.net/threads/28555-Windows-Embedded-Standard-7-keys. At first everything was rather slow, but I think that may have been the usual first run syndrome, and indexing the new system. About 3GBfor the full install (I'll attach the DISM /online /get-features output list for anybody interested. View attachment packages.txt There's probably a load of unnecessary stuff in there. Any suggestions would be welcome. It speeded up a little but was still sluggish. I shut down again, and transferred the USB card reader to the Packard Bell, and it booted up without complaint! System Properties report that the product is still activated, so the change of hardware platform makes no difference. I'd have to install another set of drivers to make it fully functional. Now of course I shall be trying to boot every conceivable system from it. It's a great feeling to know I have an SD card with a Windows 7 installation that I can run on different hardware.