Zend certified PHP/Magento developer

lock/password protect specific regedit keys or deny acces for the admin account

the context is as follows;
I, sole user and thus admin of a laptop want to stop myself from changing 2 specific key values.
I have no self control; so I would love if it would be possible to lock these 2 keys so that their value can’t be changed. (or just block regedit entirely?)
I could then simply let someone I trust set the password so I cannot change these 2 values.
I don’t know if there are other/better ways; but in the end I shouldn’t be able to change these 2 values while still having a (emergency) way to acces them

the values are just blocking use of guest mode and making more profiles in chrome to circumvent a site blocking focus-extension
any advice to eliminate these two circumventions in other foolproof ways would also be greatly appreciated!
thanks in advance