I need to do a totally fresh install of Windows 7 on my old laptop to get it ready for some emergency travel, but all I have is the OEM disc I used on my desktop. The laptop came with a Windows 7 key on a sticker on the bottom, so can I just pop the OEM disc in and reinstall using the disc and laptop key, or because I've already used the OEM disc on my desktop do I need to get Windows 7 files from somewhere else? I have only a vague idea of what I'm doing and frankly wouldn't be screwing with it if it wasn't an emergency. I'm sure this is a dumb question, but any help is greatly appreciated! Thank you!