As a sidenote, prior to getting the installation of your new operating system completed I would recommend getting a WIndows 7 Upgrade Advisor service completed on your unit. It can identify many possible problems before they occur. This service can be done by a certified ConnectPro Online Support Expert, in the comfort of your own home. You can find information regarding this service here.

You may also want to back up all your important data prior to the upgrade. This can be done by clicking on my graphic below and connecting to a ConnectPro Online Support Expert or if you should choose, you can have one of the in-store tech experts to complete the work for you.

It's always best if a clean install is completed when upgrading to a new version of windows, if not, you could be carrying over problems that may or may not be present in your current configuration.

More info about ConnectPro Online Support as it applies to your situation can be found here.

Hope that information helps you out some.