On a laptop ALT + 0191 is not particularly convenient. For occasional usage the Character-map tool works. You find it the Accessories folder, more precisely in the folder System Tools.
If you use it often because you work a lot in Spanish, you could create a custom keyboard layout, using this tool: https://www.microsoft.com/en-us/download/details.aspx?id=102134. I have created a custom keyboard layout myself, mainly because I got fed up with the underscore requiring the Shift key on a Swedish keyboard, but while I was at it, I added a few more characters. (Not ¿, though.)