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!