Perhaps best to give a little more detail as to how much memory is installed on your computer,what sort of files are you trying to open,are there any programmes running in the background that you are aware off,if so what are they?.
OnePlus 5T review: Hands-on
Illustrator Andrés Lozano on his improv line work, brazen use of colours & hand sketching
iPhone X review
Comment envoyer gratuitement des gros fichiers ?