Hello and welcome to justanswer, My name is ***** ***** i will be assisting you today,
I'm sorry about the issue, Please try one of these solutions :
Erase your device with iTunes
Erase your device with iCloud
If you set up Find My iPhone on your iOS device or Mac, you can use iCloud to erase and restore it.
Additional Information :
Let me know the results please
did you tried my previous suggestions please?
You need to buy a new cable so you can connected to Itunes.
hope this help
Once you connect the ipad to your computer, let me know the resutls, If you need any furthr help let me know and i will gladly continue to help
Please download it from the link below :
It ok, it will work on vista too, please try to install it and let me know.
can you redownload it from this link please :https://support.apple.com/downloads/iTunes_8_0_1_for_Windows_64_bit