Hey, aliraza6156.
I see that iTunes on your Windows PC isn't syncing automatically with your iPhone 6 any longer. I see that you had to reinstall Window and iTunes but something isn't working correctly. I'm happy to help.
Remove and reinstall iTunes and related software components for Windows 7 and later -- Remove iTunes following the steps provided paying close attention to these steps:
Use the Control Panel to uninstall iTunes and related software components in the following order:
- iTunes
- Apple Software Update
- Apple Mobile Device Support
- Bonjour
- Apple Application Support 32-bit
- Apple Application Support 64-bit
On some systems, iTunes might install two versions of Apple Application Support. This is expected. If both are present, be sure to uninstall both versions.
Don't uninstall these components in a different order, or only uninstall some of them. Doing so might have unintended effects. After you uninstall a component, you might be prompted to restart your computer. Wait to restart your computer until you're finished removing all of the components.
And:
- After you make sure that iTunes is completely uninstalled, restart your computer (if you haven't already).
- Then download and install the latest version of iTunes for your PC.
- If the issue persists, look for more information on the iTunes Support page, including help with specific messages.
Once you've successfully reinstalled iTunes, try automatically syncing your iPhone 6 again.
Let me know how that goes.
Take care!