There're two ways for refresh RAM of your windows, to make your computer faster if there a "lag" or "hang"
this's only works on windows OS

The first ways, make a vbs program with a notepad
open program notepad, then copy this :

FreeMem=(1280000000)
FreeMem=(2560000000)
FreeMem=(5120000000)
FreeMem=(10240000000)
FreeMem=(20480000000)

then save as file [namefile].vbs

to open, just only doble klik on yourfile.vbs

[note: no windows will open, just run in background]


The second ways:
just press keys [WINDOWS] + R and fill "rundll32.exe advapi32.dll,ProcessIdleTasks" without quote and press [Enter]

try it dude :) it work