[hwood1942]

Recently I have endeavored to install Itunes and receive the error 2503 and 2502. It appears that it is now impacting every install. Could you please assist with solution?

 

[OldGrayGary]

Here is a link to the latest 64-bit version I could find -- iTunes 11.01
iTunes 11.01 for Windows 64

...and if your apple devices aren't connecting well when plugged in:
See if this works for you ---
iTunes: Fix iPhone or iPod Not Detected in Windows 8

Nice little guide for an easy update ... complete with screenshots of each step.

Best of luck
. . . Gary