Hello rosegold72,
Thank you for using Apple Support Communities.
I understand from your post that you are not able to import your photos to your Windows PC from your iPhone 6s. The following article has you can use to view the Microsoft instructions on how to import your photos:
Import photos and videos from your iPhone, iPad, or iPod touch
You can import photos to your PC by connecting your device to your computer and using Windows Photo Gallery:
- Connect your iPhone, iPad, or iPod touch to your PC with a USB cable.
- You might need to unlock your iOS device using your passcode.
- You might also see a prompt on the iOS device asking you to Trust This Computer. Tap Trust or Allow to continue.
Then, follow the steps in these Microsoft knowledge base articles to learn how to import photos to Windows Photo Gallery:
When you import videos from your iOS device to your PC, some might be rotated incorrectly in Windows Photo Gallery. You can add these videos to iTunes to play them in the correct orientation.
Photos and videos that you sync from your computer to your iOS device using iTunes can't be imported back to your computer.
Learn what to do if you can‘t import photos from your iPhone, iPad, or iPod touch to your computer.
Best Regards