For the games, fire up control panel, go to programs - programs and features - turn windows features on or off, Click continue, uncheck games, click OK.
If in classic view fire up control panel, go to programs and features - side menu - turn windows features on or off, do the same.
As for removing media player, it's integrated, live with it. ;-)
lol you can remove media player simply go to add/remove programmes locate and destory haha