Why has my RAM got smaller for no apparent reason?

Be
4

The ram of my laptop has dropped from 4GB to 2.7GB. I also switched from windows 7 to windows 10. Can someone help me? Both RAM bars are in there. Is btw ddr3

di

Can it be that a part is reserved for windows

32bit needs 1 and 64 2 gb

Pe

How do you measure that?

It is displayed in the Task Manager but you have to be able to read it! Use a tool like Speccy! So you can see it exactly.

Tr

I think he means the total RAM, not the available. Otherwise the question would be a bit stupid.

Ha

Windows reserves part of your RAM for the onboard graphics card if necessary. That can be 500 megabytes to 1.5 gigabytes. Windows 7 occasionally displays this correctly and Windows 10 displays it correctly.