Hi ThistleBe,
Thanks for contacting Apple Support Communities!
We understand that you'd like to learn more about managing your iCloud Photos on your Surface Pro.
In order for your iCloud Photos to be deleted, you would have to delete them from your Apple device that is connected with your iCloud account. If you delete photos from One Drive, they won't be deleted from iCloud. You can learn more about deleting iCloud Photos for Windows here: Delete photos and videos in iCloud for Windows - Apple Support
"With iCloud for Windows, you can delete photos and videos stored in iCloud Photos from your PC.
When you delete a photo or video, it’s removed from your PC but still stored in iCloud Photos. You must delete the photo or video from an Apple device or from iCloud.com if you want to remove it from iCloud. See Delete and recover photos and videos on iCloud.com in the iCloud User Guide."
Take care!