Q: I keep getting error 2503; 2502 when trying to install itunes in order to back-up my iphone; are there any downloads to correct this problem; any other help???

The issue seems to be with Windows 8/computer.  Try googling those error codes and see what result you get.

I don't see any of those error codes in apple support page http://support.apple.com/kb/TS3694 http://support.apple.com/kb/TS1424

Are these errors being generated just from the install of iTunes? If so, it could be something with the security software in Windows 8. You may need to disable Windows Defender or the Windows Firewall temporarily to complete the download and installation.

http://answers.pubarticles.com/59459,how-to-fix-error-codes-2503-and-2502-in-win dows-8-1345527156.html

There is also a Microsoft forum which says this http://answers.microsoft.com/en-us/windows/forum/windows_7-system/internal-error -25032502/28b361b7-b2d7-494d-8470-5969f6850f5a

Nick,

FYI, your link is only producing an error. I haven't been able to look at the page.

That happened to me when I looked at it too

1) download itunes installer

2) right click on downloaded file

3) select run ad administrator

boom problem solved

It's finally working! thanks a lot!

You're an angel sent from above thank you so much !

thanks its work