How do I resize Cortana?

[opethdisciple]

For some reason over the last week my Cortana has changed size with out me doing anything to it.

Any one know how I resize it back to normal?

 

[opethdisciple]

This resolved it's self without me doing anything.

I believe it was a bug introduced by MS which fixed itself. Either just after a few restarts or they actually patched it in a later patch.