Error 1906, 1603,1628

I tried to update my iTunes software and I received the error message 1906: C://Windows\Installer\ae8c8c.msi Error - 2147286775. I tried to reupdate the software after turning off my antivirus software and I received Error 1603. So I restarted my computer and tried again and received error 1628. What do I do because I cant get iTunes back on my computer to update my iPod.