How to check your windows is orgina or crack ?

>open command prompt

> Type slmgr.vbs/ dli

> You Can see this types interface

 > IF YOUR COMPUTER SHOW THIS INTERFACE THEN YOUR OS AND PRODUCT KEY ARE CRACK

> IF YOU SEE THIS TYPE OF INTERFACE 

> YOUR OS OR PRODUCT KEY  IS GENUINE OR ORGINAL 

Notice :( GENUINE DOSEN'T HAVE ANY EXPIRE DATE)