When i plug in my ipod touch 4th generation i go to itunes and a message pops up that says"this ipod cannot be used because the apple mobile device service is not started". but my ipod came to the connect to itunes screen

Question

i can not get my ipod to get out of the connect to itunes page , and when i plug it in it says itunes mobile device system is not setup

Answer 1

From what I know from troubleshooting all sorts of screwed-up PC devices, you should try the following steps (I have assumed you didn't try any of them, so plz don't take offence for some "basics"):
1) Updating the iTunes on your PC, or if it's already the latest, see if you can find the individual install package of "Apple Mobile Device Support" by using Window's Search (the package should be "AppleMobileDeviceSupport.msi") and reinstall it (Uninstall the existed one first). If you can't find the individual package, I think you may find a downloadable one online, or if you want to simply the process, just reinstall the whole iTunes.
2) If problem remains, check if there's any "application/service monitoring function" on your anti-virus/spyware program, and find if "Apple Mobile Device Support" is on its "blocked list", remove this entry when you find it.
3) Check if there's any "Registry" clean-up software/function in a software, or whether you've altered any apple-related or unknown registry entries. If it's a yes, see if you can find the most recent Registry backup before the iPod connection problem occured. In the case you do not have any backup (Make sure! Almost every Registry clean-up software would back-up Registry before any cleaning process. You can find them in this software's directory), simply use the "system restore" program of Windows to restore your computer to the latest point when iPod's connection with PC was still functioning.
Since we can't find any problems with "Apple Moblie Device Support" from above steps, let's refocus to the hardware part:
4) Restore the "setting part" to default on you iPod, if you don't want to wipe clean your setting now, try below steps first.
1) Plug in your iPod to other USB port, if it doesn't work, try plug in other devices to check if there's any problem with your USB ports or USB's drivers on PC. (If there is, try 'roll back' the USB driver's version by entering to its 'property' on right-clicked menu, if still doesn't work, maybe the USB ports are broken-down)
6) Go over the steps and check if you've tried everything. The latest choice I'd advise is to check if you can find another "USB cable" for iPod and plug-in so you'd know if the original is broken.
Well, that's about all I can think of. Good luck and post your questions if you need any clear-up.