Sometimes you need to use the special characters like ®, ¤, © …. in your office applications. The easy way to find these characters is by using the Character MAP Utility provided by Microsoft. (Run menu -- charmap.exe).
Select the Symbol you want and notice the keyboard shortcut for the same in the bottom-right of the window.
So for future ease, remember this keyboard shortcut, and save precious time.
We can see that for the ® key, the keyboard shortcut is Alt+0174.
NOTE: These keyboard shortcuts work only with the Numpad keys, not with the standard numeric keys found above the QWERTY keys.