I cloud
How do you select all photos to download to my pc?
See the article Download iCloud photos and videos - Apple Support
On your Mac or PC
- On iCloud.com, click Photos and select a photo or video. Hold the command key on your Mac or control key on your PC to select multiple photos or videos.
- Click and hold the download button
in the upper corner of the window. If you want to download your photo or video as it was originally captured or imported, choose Unmodified Original. For JPEG or H.264 format — including edits, and even if it was originally in HEIF or HEVC format — choose Most Compatible.* - Click Download.
Read Download and view iCloud Photos on your Windows computer - Apple Support