Your computer's RAM decides how efficiently your PC will function. Upgrading the RAM is ofcourse the best option, but not feasible at all times, so the next best option is to keep your RAM free from cluttering programs or rather Dynamic Link Libraries (DLL's) When programs run they use DLL's, which contain programming instructions and applications to make a program run. Usually when we end a program, the DLL's that it uses are released from RAM, [most of the times], however there are DLL's that get seated in RAM and occupy unnecessary space and thus reduce the performance of your system and make it slow. Now all we need to do to keep the performance of our PC at its best, is to ensure that all the DLL's related to a program get released by RAM as soon as we close that program. And this is what we need to do: Click on "Start" menu and then select and click on "Run"

In the "Run" window type "regedit" and click on "OK"

In the "Registry Editor" window that opens, navigate to:

My Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer

In Explorer, in the right pane of the window, right click on an empty area, select "New" and then "Key"

Rename the key as "AlwaysUnloadDLL" and in the right pane of the window for the "(Default)", double click it and set it its value to "1" and click on "OK"

Reboot the computer for the change to take place. And the next time when you close any program, all the DLL's associated with it will also vacate that place in the RAM that they were occupying leaving your computer to function at its best!