0.78 GB is still way too much... My machine only has 3.5 GB of usable memory because the integrated video chip takes 512 MB. It doesn't take many minutes until Windows runs out of memory as base system already takes 1.2 GB of memory. I can't use swap memory because I/O subsystem in Windows 10 is so slow that I have to actually suspend programs once in a while for I/O to catch up with the other parts of the operating system.