Are you having trouble backing up you iPhone using iTunes? If it’s hanging at step 2 of 5, this solution may work for you too:
1) Reset your synchronisation history
2) Delete all previous backups (C:\users\<username>\AppData\Roaming\Apple Computer\MobileSync\Backup)
3) Right click on command prompt and select “Run as Administrator”
4) run the command “netsh winsock reset”
5) As always, finish with a reboot!
Hope this works for you too!