Disabling incognito mode in Chrome for good

If this is for a kid with their own Google account, Family Link is easier than registry edits. On Android phones and Chromebooks managed with it, incognito is blocked automatically and they can't undo it. The registry route above works fine on Windows Home too, by the way, people sometimes assume policies need Pro.

There's no switch for it in Chrome's own settings, you have to do it through a policy. On Windows, open regedit, go to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Google\Chrome (create the Google and Chrome keys if they aren't there), add a DWORD called IncognitoModeAvailability and set it to 1. Restart Chrome and the incognito option is gone from the menu and Ctrl+Shift+N does nothing. On a Mac it's one Terminal command: defaults write com.google.Chrome IncognitoModeAvailability -integer 1 Type chrome://policy in the address bar afterwards to confirm it took. If this is about a kid though, remember Edge and Firefox both have private modes too, so you'd need to lock those down or remove them as well.