HOW TO INSTALL WINDOWS UPDATES IN WINDOWS 7?

After
the released of windows 8.1 many users have upgraded from windows 7 to Windows
8.1 because windows 8.1 is far better than windows 7. But if you are still
using windows 7 and don’t want to upgrade due to various reason. If your are
using genuine copy of windows 7 its ok you can update it without any problem but if you are using pirated copy of windows 7 you will face problem when you install
updates because the windows update comes with Windows Genuine Advantage
notification (WGA) which verify whether you are using genuine copy or pirated
one and if you are using pirated windows your activation will expire and every
time you start windows the message will appears saying "Windows is not
Genuine" and you cannot even change the desktop wallpaper also.