At least! I arrived to remove Microsoft Visual C++ 2008,  using Windows clean Up, and so to install iTunes 10.7.  I tried before to use Fix it without result... Maybe, I don't use it correctly ?...    Thank you for your support
since 3 weeks, I try to install iTunes 10.6 on my laptop XPS windows 7 in order to connect my PC using an iPhone. It is absolutely impossible, with or without Mcafee, updating the lasts windows updates...   I've installed the 10.5 version but this version does not recognise my iPhone, and when I try to update using Apple Software Update, the progression stop when loading iTunes. I Tryed to uninstall iTunes and to install the new version from apple website, the installation stop when arriving to the "publishing product information". " An error occured during the installation of assembly "microsoft VC80 CRT Type win 32 version 8.0.50727.4053" Publickeytoken 1f...., processor Architectur amd64 HResult 0x800736FD" Orange (telephone operator) said it's a Apple sofware problem, Apple said it's a PC problem, I asked to a Dell technicien on facebook who said "contact the apple technical support..." I believe that every body don't care about her customers, and it's unbearable because each time I try to get telephonic support, I pay for that wasting my time on the phone and money speaking with unqualified people but I cant get the solution, I only hear the same thing "sorry, we can do anything for you, try to contact the (apple or dell) technical support"  If you have the RIGHT and efficient solution for this problem before I sell this laptop and buy a Macbook ...  Thank you....
Impossible to install iTunes on an XPS