What do you think the cause of your white screen is? Sometimes it's caused by the mobo, gpu etc. but other times it can be caused by viruses on your PC.
http://techvts.com/white-screen-virus-on-windows-computer-removal
Sorry i can't help you more
🙁, A re install of windows will probably fix it but if you have a problem with your hardware i don't think a re install would change it. But there's no loss in trying
😀