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If you don't care about battery use, heat, electricity costs and wear on the system - in most cases the bottom line is: yes, you can leave your laptop on in most situations, except for an occasional reboot. However, if your laptop often grows too hot to touch, you might be better off putting it to sleep or shutting it down when you aren't around.
No, it doesn't matter. If it gets hot to the touch.... it's broken.
Elnina, any modern laptop should not get hot to the touch especially sitting idle.
Electricity costs is last I heard estimated at less then 18 cents a day.
She is right about battery life though. Do you use the battery? A laptop that never discharges the battery will kill the battery faster then using it regularly.
Many argue that never shutting off your PC is better long term.
There's no wrong answer here.
If you want to leave it on all the time, remove battery and use just the AC connection. Make sure it stays cool and the screen goes off when not in use. It should be fine.
Most modern laptops stop charging once they reach full charge, if you put your mouse on the power icon and it says charging even when the battery is at 100%, then it would be best to pull the battery out and run the laptop on a UPS, for the just in case of a power glitch or failure. When I am in the Philippines for 3 to 4 months a year, my laptop is on 24/7 but the monitor and the computer itself goes to sleep after 1/2 hour of no use and I have been doing that for many years now and with two different laptops over time, although I do use a laptop cooling pad as an extra precaution. I also have friends who have had all their laptops run for many years now, two of them are still xp and they never shut them off but their laptops do go to sleep when not in use.
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