I used to have this problem all the time. But recently, it seems to have fixed itself permanently. I don't know if it was a Windows update or an AC update, but it seems to be stable now. You might try updating your Windows system and AC to the latest versions. BTW, the value of that registry item that seems to work for me is zero.
Richard
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Richard Morrison, Architect-Interior Designer
AC26 (since AC6.0), Win10