I purchased a Transcend SATA external hard drive in 2007 and my new laptop runs Windows 7. The software disc which comes with the SATA says it's for 2000/XP/Vista only. Where can I get an upgrade for Windows 7? I have searched Software Informer and there is nothing. I am strictly a "dummy" when it comes to these things - all I want is a backup copy of my hard drive.