Unplugging a PC during a power outage can protect it from voltage fluctuations and surges, particularly when electricity is restored. Remaining connected to household wiring leaves sensitive components such as the motherboard, RAM and SSD exposed, even if the computer is switched off; running systems may also suffer data corruption or hard-drive damage from an abrupt shutdown.

The article recommends shutting down and unplugging PCs, routers and other valuable electronics before or during severe weather, then waiting a few minutes after power returns before reconnecting them. Surge protectors provide basic defence, while a UPS adds battery backup and allows a safer shutdown; whole-home protection can be installed by a licensed electrician.