an error of Runtime error r6034, with a message like "An application has made an attempt to load the C runtime library incorrectly. Please contact the applications' support team for more

i have DL the Latest Itunes on my PC which was working fine til i did the itunes updated version and now i am getting this message and also something about not starting my iphone or ipad devices or something similir. Can anone please help me, i also did recieve a message stating that i had a MSVCR80.dll corrupt i actually had to remove itunes from my PC because there were to many things poping up after the Update. Can someone please help me.