1. Just follow the steps to achieve your upload process in iCloud Photo Library.
2. Download iCloud for Windows and start it.
3. Next to Photos, click Options > Select iCloud Photo Library > Tap Done > Click Apply.
4. Turn on iCloud Photo Library on your iPhone or iPad.
5. Open a File Explorer window > Under Favorites, select iCloud Photos > Click Upload photos and videos.
6. Select the photos you want to upload and tap Open.
As you can see it is not a simple process, and if you feel inconvenient to do above, you can use the effective third-party software to transfer all your iPhone photos to your computer.
Here we want to recommend you a free iPhone data transfer software that now is very popular in the world – Qiling MobiMover Free, with it you can transfer not only photos but also music, video, note, message etc., from iPhone/iPad to PC with Windows 10/8/7. Meanwhile, if you need to transfer files from PC to iPhone without iTunes, MobiMover is also your best choice. Just scroll down to see how it works fast and easily.
Step 1. Connect your iPhone to PC running Windows 7 or later. Run Qiling MobiMover and click "Phone to PC" on the screen. Then, click the "Next" button to continue.
Step 2. Check the category/categories you want to transfer from your iPhone to PC running Windows 10/8/7. As you can see, you can copy other supported files together with photos from your iPhone to PC at once.
Step 3. Now, click the "Transfer" button to transfer the photos from iPhone to your PC in one-click. If you've customized the storage path, find the files there. If not, you can check them on your desktop.
When the transfer begins, and it will only take a few seconds. When it's completed, you can choose "View" to check the photos. It's easy to transfer photos from iPhone to iPhone too.