I am having the same problem. I am using files of the range up to about 5MB but need to export them in JPG or PNG for my associates to paste into Excel 365. I moved to Windows 10 from 8.2 a couple of days ago and it seemed to be more robust, I just for a JPG out of the PDF file that I had not been able to export in Windows 8.1
I have 16 GB RAM from the HP Envy factory. Disk space is no issue as I have 700 and 390 GB free on my system disk and data disk respectively.
George