CompTIA A+ 220-901

Answer: A - If you notice a burning smell emitting from your system, the first thing you should do is shut down the system and remove power to it.

Key Takeaway: When it comes to electrical systems, a burning smell is never a good thing. The first thing to do, always, is remove the electricity source from the computer after shutting the unit down. This way, if an electrical fire has started in your system, you will remove the source. Additionally, fires are helped along by oxygen, and the fans in your system won’t be helping the cause. Once you’ve done this, call your supervisory and possibly 911, depending on the severity of the situation. Hopefully, your organization has a plan of action in case of emergencies such as this.