Which sentence demonstrates the appropriate level of formality to use when communicating with coworkers?

Question

Please remember to turn off your computer at the end of the day.

Hey, seriously, don’t leave the computer on.

I would like to request your cooperation in ensuring that the computer is shut down at the termination of business hours.

Failure to properly shut down the computer will eventuate in technical difficulties.

Answer 1

Please remember to turn off your computer at the end of the day.