Greetings. I have a lot of trouble sync my iphone 4, Ipad 1 and various ipod. Every time I try to sync them, I get an error message : appver: 17.1008.10.20 or szAppVer: 17.89.0.12

Greetings.

I have a lot of trouble sync my iphone 4, Ipad 1 and various ipod since 2 month.

Every time I try to sync them, I get an error message : appver: 17.1008.10.20 or szAppVer: 17.89.0.12.

I will also get the following from time to time : unknown error (-50), unable to sync

It is simply impossible to back-up my devices.

I have tried the following:

uninstall everyting apple (itune, safari, quicktime...) and do a clean install.

restore my devices to factory default

try to use the autoruns.exe

Aside from that, everyting is working fine. The apple store is working fine (not the blank apple store situation). Icloud is desactivated.

I am now out of ideas.

My system : XP

I am also running an Apple TV

Anyone to help me ?

Regards.

ps sorry for the poor english !