[RndTbl] Prohibiting selected users from booting into Windows

[Mel Seder]

Our kids are coming for a few days over the May long weekend.  They both are
computer users and I don't want them running Windows on my PC.

Currently when the computer boots you can select Windows or Linux.  Is there
some kind of autoexec I can put on windows that requires a password to
continue.  If the password isn't keyed in I want the PC to either shut down
(preferably) or go to grub's boot screen.

Any ideas?




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The true measure of a man is how he treats someone who can do him 
absolutely no good. -Samuel Johnson, lexicographer (1709-1784)