How do i use print screen key

Prt SC (Print Screen) does NOT send the screen to the printer!!
If your windows desktop is showing, Print Screen will capture the ENTIRE screen to the clipboard - Open Paint and Ctrl-V to paste the captured image into paint (or other graphics program).
If you want to capture only the active screen, use Alt-Prt Sc and do the same with it.
Take screen capture print your screen Windows Help
Print screen Wikipedia the free encyclopedia

Print Screen
Use this method to print screen.
Press and hold down the Alt key and the press the PrtSc key, this places the screen image into the Clipboard. .
Open a blank Word document and then Click on Edit - Paste.
The image is then places onto this page, you can up the image by holding down the Shift key and then place the cursor on the bottom corner of the image, then press the left mouse button and drag it down to the right, release the mouse button when you have d the image to your requirements.
NOTE - Holding down the Shift button will maintain the image in the correct proportion.
You can now print this image document and or add text before printing.

Print Screen
Use this method to print screen.
Press and hold down the Alt key and the press the PrtSc key, this places thescreen image into the Clipboard. .
Open a blank Word document and then Click on Edit - Paste.
The image is then places onto this page, you can up the image by holdingdown the Shift key and then place the cursor on the bottom corner of the image,then press the left mouse button and drag it down to the right, release themouse button when you have d the image to your requirements.
NOTE - Holding down the Shift button will maintain the image in the correctproportion.
You can now print this image document and or add text before printing.

You need a printer attached to your computer.
Print Screen
Use this method to print screen.
Press and hold down the Alt key and the press the PrtSc key, this places thescreen image into the Clipboard. .
Open a blank Word document and then Click on Edit - Paste.
The image is then places onto this page, you can up the image by holdingdown the Shift key and then place the cursor on the bottom corner of the image,then press the left mouse button and drag it down to the right, release themouse button when you have d the image to your requirements.
NOTE - Holding down the Shift button will maintain the image in the correctproportion.
You can now print this image document and or add text before printing.

you have to hold down either the CNTRL button OR the ALT button while you push print screen. One will capture the whole desktop and the other will capture only the active window.

In most cases, all recent versions of Windows use Ctrl+Alt+Del to bring up the Tasm Manager. You can't usually use that key combo to restart your PC.
When you did that, was any application highlighted as 'not responding?' If so, that is where you should start looking for problems.
Otherwise, try to post additional information for us here.
-a.

if there is an 'fn' key on your keyboard then your combo would be
fn+prtsc+alt - to capture top windows and fn+prtsc to capture entire screen
If however your prt sc key is combined with another key and written on top then you need to use
shift+prt sc + alt to capture top windows and shift+prtsc to capture entire screen

press shift key 5 times message will be come go to setting and uncheck all 4 option and apply problem will be solved. pleaseee rate this solution thank you.

When you use the Alt Print Screen button then you need to place it onto a word document in order to print it. Open up word and select to paste the frame into your word document and then print it out.

After you press print scr, it won't print to printer, you need to paste it in application such as paint (come with ms windows) and from there you can print it to printer.
the combination key,
try press prn scr only and paste it in paint application.
if it isnot working, try using shift+prn scr.