applejax writes "SecurityFocus is running an article regarding some concerns about Vista's activation terms. Do you have the right to use properly purchased but not validated software? What happens if Microsoft deactivates your OS that was legally purchased? The article goes into some detail about Vista's validation and concerns." From the article: "The terms of the Vista EULA, like the current EULA related to the 'Windows Genuine Advantage,' allows Microsoft to unilaterally decide that you have breached the terms of the agreement, and they can essentially disable the software, and possibly deny you access to critical files on your computer without benefit of proof, hearing, testimony or judicial intervention. In fact, if Microsoft is wrong, and your software is, in fact, properly licensed, you probably will be forced to buy a license to another copy of the operating system from Microsoft just to be able to get access to your files, and then you can sue Microsoft for the original license fee."