@tuxicoman I just set up 10 pc's with win10 on them. When you set the default apps like thunderbird, irfanview, vlc... Changing MS Edge to Firefox is the only app that whines and snivels for you to at least give it a try first.
And the hoops one has to jump through to get win10 down to Warp Speed Invasiveness from Ludicrous Speed Invasiveness is insane.
And I don't know how often the control panel has crashed on me.
Vanilla copy downloaded from redmond itself.