I have a copy or Windows 8.1 named en_windows_8.1_with_update_x64_dvd_4065090.iso. I use this to do legal clean installs and works on your HP,Dell,etc computers. My question is....If I want to use Microsoft Toolkit to activate a computer that came with Windows 7 but want to give them 8.1 can I use this same version listed above or do I need a VL version to do this? I'm not clear on how this works. Can I convert my current version to VL if necessary? Thanks.