Last April I bought a refurbished Canon 6d from Canon to use as a backup for a trip that later had to be canceled. I seldom use this camera as I have an older 6D that I normally use. I want to sell the newer 6D, and I see that other sellers are stating the number of shutter actuations in their classified ads. Can anyone tell me how I can find the number of actuations without sending the camera to Canon? I have Windows 10 on my computer. Thank you for any help.