For me it always stops at '19 photos and videos found 'I only have an hour left…
IPhone or Android?
Open "Computer" there your cell phone should be visible, click with the left and then on "Import files", feddich
Do that via Dropbox or Google Photo (or similar). Dropbox is very convenient. Take a picture and it's a second later on the PC.
Android
Connect the mobile phone to the PC via USB cable, on the mobile phone in the notification of mass storage or data transfer or the like. Set and then open the file manager on the PC
Relevant note: Dropbox is free up to 2Gb. That's a lot! But best to remove photos from the Dropbox. Photos that you delete in the Dropbox are not deleted from the mobile phone, and vice versa (unless you delete them from the Handy Dropbox app, they are everywhere). Screenshots from cell phones or PCs also end up in the Dropbox. Funky comfortably.
But when I do that, it always gets stuck at a certain point