If you've lived on the peninsula for more than a season, you know what October and November bring: wind off the lake, flickering lights, and the occasional outage that lasts long enough to reset every clock in the house. It's easy to shrug that off — but for your computer, a sudden power spike or drop can mean a fried motherboard, a dead hard drive, or hours of lost files.
Here's what's actually happening, and what you can do about it.
The problem: surges, sags, and dirty shutdowns
- Surges — a sudden spike in voltage (often from a lightning strike nearby or the power grid switching back on after an outage) can overload and permanently damage internal components.
- Sags/brownouts — a temporary drop in voltage can cause a computer to behave erratically or corrupt files mid-write.
- Dirty shutdowns — when the power just cuts out, anything your computer was doing at that moment (saving a document, installing an update) can leave files or even the operating system corrupted.
Desktops are usually more exposed than laptops (which have a battery buffering them), but laptops plugged in during a surge, and any external drives or networking gear, are just as vulnerable.
What actually protects you
- Use a real surge protector — not just a power strip. Look for one with a joule rating of at least 1,000 and a light indicating it's still providing protection (surge protectors wear out after absorbing hits and need replacing every few years).
- Consider a UPS (battery backup) for your main desktop. A UPS gives you clean power and, critically, a few minutes of runtime to save your work and shut down properly when the power drops. For around $80–150, this is the single best insurance policy for a home office setup.
- Unplug during major storms if you'll be away. No surge protector is 100% lightning-proof. If you know a big storm is rolling in and you won't be home, unplugging is still the safest move.
- Back up before the season starts. No amount of surge protection helps if you never lose power but a drive simply fails from age. An external drive backup or a cloud backup (or both) is your real safety net.
If it already happened
If your computer won't turn on, is making unusual noises, or is behaving strangely after an outage, stop using it and get it looked at before you try to force a fix — powering through can turn a repairable issue into data loss.
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Bayshore Technologies serves Door, Brown, and Kewaunee counties.