Hi,just now i tried to install Quicktime and itunes,but don't know why can't install properly,it written there encounter error during installation...and ask me try to re-install back..

But now i can't even uninstall it..keep appear "Fatal Error During Installation",what to do now?

Without Quicktime i can't install itunes,thus can't connect my iphone to pc...i need to delete all the phones contact number...and transfer music and photos..how?

Hope some sifus here are willing to help me out...thanks alot!

bro can i know how to go into safe mode?