[bam0112]

I disabled the auto deploy of the keyboard in the registry to fix this.

(this is from the tips & tricks post)

edit this registry setting:
HKCU\ContralPanel\Sip

Change TuronOffAutoDeploy from a 0 to a 1

You can still use the keyboard by pressing the keyboard soft key on screen, or assign it to a button. But with this setting it won't pop up unless you tell it to.