Download photos from iPhone to my pc

Use Windows Photo App -- The process is given below

Import Photos and Videos to your PC

You can import photos to your PC by connecting your device to your computer and using Windows Photos app:

1. Make sure that you have the latest version of iTunes on your PC. Importing photos to your PC requires iTunes 12.5.1 or later.
2. Connect your iPhone, iPad, or iPod touch to your PC with a USB cable.
3. You might need to unlock your iOS device using your passcode.
4. 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 Photos app:

• Windows 10
• Windows 8
• Windows 7

When you import videos from your iOS device to your PC, some might be rotated incorrectly in Windows Photos app. You can add these videos to iTunes to play them in the correct orientation.

If you have iCloud Photos turned on, you need to download the original, full resolution versions of your photos to your iPhone before you import to your PC. Find out how.

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.

OK got it. It's a known bug with HEIC/HEVC conversion on Win. For photos, change the setting to "Keep originals" at the very bottom of Settings > Photos on the phone. Then use any free converter and convert them to JPEG. No workaround for videos at the moment, unfortunately, except excluding them from the transfer or using third-party apps (check iMazing if you'll decide to try one, no major issues for 2 years so far, guide if needed).

Also you can use Image Capture if you have a Mac (native macOS app). Trying on another PC may work as well (bug happens not on all computers for whatever reason).

Exporting from DCIM folder through file explorer and Photos app are the only options. Do you have any issues with them?

I use a program"anytrans" that is completely free and easy to use, through which you can control the iPhone from all sides