Depending on which version 32 bit or 64 bit you are going to install you will required to format the drive and install Windows 7 fresh. Again Congratulations. for a successful resolution for your issue.
You are very welcome. I'm glad we could help and please let us know how everything works out for you.
If there is anything else we can do to help please feel free to ask. I appreciate that you allowed me to assist you with your issue and for your patience.
Thank you for choosing GeeksToGo for help.