where is the memory settings

2020 is very slower than 2019.  at firstset its fast later, its slowing down itself.  i added some free GSM macros.  From there onwards it is extremely slow and shutting down suddenly.  sometimes memory is not sufficient showing.   i tried to find the memory... but nowhere find in 2020

Good question

Ths option no longer exist since a lot of years ago. That was a setting for Windows 95/98, but newest version of Windows doesn't allows that applications do it. As far I remember, this setting still exist under Windows XP but it doesn't make effect, since XP doesn't allows it.

If you want to increase Memory, you should increase the Virtual Memory on Windows (not RAM). By default, Widows start with 16 Mb and set up to 1 Gb,,, that's not enough for current programs. You should set at least 20 or 30 Gb for Virtual Memory. That will give you more stability. And disable that Windows manage Virtual Memory

Ariel said:

If you want to increase Memory, you should increase the Virtual Memory on Windows (not RAM). By default, Widows start with 16 Mb and set up to 1 Gb,,, that's not enough for current programs.

Where on earth did you get the idea that Windows "starts with 16 MB" and "set up to 1 GB"?

(In both cases here, I am assuming you meant "B" for bytes, not "b" for bits.)