I have a Lenovo G510, running Windows 10 Home 32-bit, and 4 GB RAM, but on the Task manager it shows that I can use only 1.5 GB of it.
In order to speed up my computer and free ram, I've downloaded Wise Memory Optimizer, and it shows that I can use only 2.5 GB.
So, how much RAM can I really use? And if it less than 4 GB, then how can I use really 4 GB?