How to flush memory in windows without rebooting!

When your computer is being sluggish,  you need to free up ram by flushing it. The usual way is to reboot, but try this first before rebooting.

In Windows:
Click on the “Start” button.
Select “Run”
Type the following and press “OK”

 %windir%\system32\rundll32.exe advapi32.dll,ProcessIdleTasks

This should clear your ram without rebooting.