Yes, gateway does not read the WD drive. Also, there is no noise coming from the WD HD. The hard drive in the Gateway has Vista as OS. The HD I’m trying to install has XP as OS. I know this XP is compatable with Vista, because I’ve installed allimportant backups from my other XP backups and all documents, game memories,etc. have been installed on my current Vista HD. So the XP OS should not be a problem.