Hi there and welcome
Do you have itunes install on the computer?
Are you doing it via this?
ok, so to confirm, the issue as it stands is getting iTunes onto your computer?
First, uninstall the current version of iTunes by going to control panel, click on uninstall a program and click on itunes
Then once uninstalled, restart the computer
Click on this link below
And download and install iTunes again and tell me please if it now installs.
I can see you are a first time user to the site. What we do here is either a question and answer type of conversation or remote support where I would actually connect to the computer and have a look and attempt to fix the problem for you.
Remote support can save a lot of time if you are not comfortable performing repairs yourself. Sometimes even with instructions you can make a mistake and make things worse.
I will send an offer through for remote support and should you accept I will connect and see what is going on and fix the issue. Otherwise we can continue to talk like this but I will need to ask a number of other questions and try and walk you through some steps.
Both options are 100% guaranteed by the way. Remote is just quicker and avoids the risk of you making a mistake and doing something wrong.
If you want remote click get extra help. If not simply reply to me.
Can you go to www.teamviewer.com
Click on Download in the middle of the page
Download and install the program and give me the ID and Password ***** please so I can connect
Do not close the program but leave it open else I will not be able to connect