What is the hardware configuration of your laptop? Are you attempting to perform a custom or upgrade installation?
You might want to run a chkdsk to confirm there are no bad sectors in your hard drive.
Also, Microsoft does have an official Windows 7 Support Forum located here http://tinyurl.com/9fhdl5 . It is supported by product specialists as well as engineers and support teams. You may want to also check the threads available there for additional assistance and guidance.