I'm sorry pushing this up, but I have also an version with preactivation. I tried to modify my original Vista, but it also gaves me the message of removing the OEM-settings. I told the program not to remove the settings, and selected the skipping of entering the key. I installed my vLite'd version, and the setup worked fine, but when i started Vista the first time, it told me to enter the CD-Key. Because of the preactivation I haven't got a key, and so I had to reinstall the original Vista. PS: In an earlyer version of vLite (I think 1.0 or so), there were completely no problems with the preactivation. But I want to use the latest version of vLite without to reinstall my Visa every 30 days