Blue screen of death after reinstall

I am running Windows 7 home edition.  Had to uninstall Norton because the backup program went beserk and filled my hard drive slowing it to a crawl.  Norton would then not delete the backups so I had to delete Norton 360 manually.  When I tried to reinstall Norton Antivirus I get the blue screen of death over and over after the reinstall.  Had to reboot in safe mode and delete Norton to get my computer to run.  So now I am without virus protection.

Thanks to anyone who can help.