Reset Media Player prompt

[tb]

How do I reset the Windows Media Player prompt "Ask me
before making changes" checkbox. I mistakenly checked
the box so that I no longer get the prompt.

I was loading an audio file from the internet when I was
prompted that the program was trying to make changes to
certain settings and I was asked if I wanted to allow
these changes. Along with this query, the prompt "Always
ask before making changes" with a checkbox was displayed
at the bottom. I mistakenly checked the box so that I no
longer get the prompt.

Does anyone know how to reset this so that I am in fact
given the prompt?