Hi there, I have been searching/browsing the site for a few hours now and can't seem to find a definitive answer to the available options for activating both OSES which both boot from bare metal VHD files. Some Background: PC - Toshiba Satellite L500 Notebook (Dual Core CPU, 4GB RAM, 300GB HDD) Single 300GB partition. NTFS Formatted VHD 1 (Type Expandable) - Windows 7 - (Max Size) 150GB VHD 2 (Type Expandable) - Windows 8 - (Max Size) 150GB Windows 7 Version - Ultimate x64 w/SP1 6.1.7601.17514 Windows 8 Version - Pro x64 6.2.9200.16384 Using some guides from this site I have successfully created the appropriate VHD files and installed both the OSES as listed above and I am able to select either one from the boot menu and they both work fine. So, as a result I have no base OS as such (If I was to boot up using a recovery disk my 300 Gb hard drive contains only 2 files, win7.vhd & win8.vhd) The time has now come to "activate" both the OSES and I was seeking some advice as to the best solution. I am interested in trying DAZ's loader for Win7 but will that screw up the currently working bootloader/boot menu or has this already been successfully done. Then there is the Win8 solution and what to do there. Any suggestions/advice will be greatly appreciated. Thanks.