your computer might have a recovery partition from which you can reinstall the OS. It will erase all date you have. I believe you have to hit the F9 or F12 key during the Compaq splash screen.
Or you borrow someone's CD and use your Product Key to install Windows. Download the drivers from the website to a CD or thumbdrive, and install starting with the network card and video drivers. At least you will have then internet access to download any drives or soft ware you still need.
Thank you very much, EMERALD. I appreciate your taking time for my question.