HOW TO CAPTURE A COMPUTER SCREEN WITHOUT USING ANY SOFTWARE

All most every one want to capture our screen in any time.
So much of people uses any screen capture software or screen grabbing tool.
Without any tool or a software saving or a capture our screen is possible.
Here is a simple way to capture your screen.
That is nothing but by pressing CTRL+Print screen SysRq buttons at a time on keyboard.

Then Open mspaint from Start>all programs>accessories>paint.
By pressing CTRL+V, that captured image will shown on paint.
Then after save that image by pressing CTRL+S.