I have recently acquired a Raspberry Pi 4B and I have just tried set it up with NOOBS on the SD card the whole process ran smoothly until the download of Raspbian began. I waited for an hour and only 34 MB of the 5479 MB had downloaded and so I shut it down. I suspect the SD card might be to blame but i am not sure. Does anybody know why it is not downloading properly? I would be grateful for any help.