This Galaxy III is new to me. How to I transfer pictures - Gallery - to my PC. I have over 500 now and can't get them over.
Please note I do not own your device.
The quickest way is to use the usb cable that came with the phone and connect it to the computer. The computer will show it as another drive letter. (E,F,G,H etc.) you open up that new drive letter and look for the pictures folder on the phone. you then right click on the pictures/photo folder and do a select all then choose copy, then go to the pictures folder on your computer and right click and select PASTE the photos should now be copied to the computer. (Make a new folder if you desire and call it like Photos transferred from S3) this way you know where they are located.
You can also just delete the photos from the phone you don't want via choosing them and then hit delete.
Download Dropbox onto phone and computer, it's free.
Once set up it will automatically download any new pictures, video, notes, documents, etc, etc. you get 500 GB of free storage, I haven't used mine up yet and I have downloaded tons of photos, video, documents, etc.
The phone will only download automatically when you are on your home wifi service.