A user complained that each time after synchronizing an iPhone with iTunes on laptop running Windows 10 it asks to enter password for iTunes account when trying to open any Apps installed from AppStore (Twitter, WhatsApp, etc). How can this be fixed?
You can manage your Apple ID payment information in Settings on your iPhone, iPad, or iPod touch; on your Mac or PC; or in the Apple Music app on your Android device.
Your Apple ID is the personal account that you use to access Apple services like the App Store, iTunes Store, iCloud, iMessage, the Apple Online Store, FaceTime, and more. When you change your payment method or billing address, your information also updates everywhere that you use your Apple ID.
If you change your payment method, make sure that your account information matches the information on file with your financial institution.
On your iPhone, iPad, or iPod touch
- Go to Settings > [your name] > iTunes & App Store.
- Tap your Apple ID, and then tap View Apple ID. You might be asked to sign in.
- Tap Payment Information, then change or remove your information. To remove the payment method, select None.
- Make sure that your name and billing address exactly match the information on file with your financial institution, then tap Done.