Is it best to leave P.C. on at night or turned off???
483106
it depend's  if you have work a lot at night
996911
on & off for 7:30 hours
389542
I also stay up way later than usual so that I am pretty much instantly asleep when I finally turn off the TV. \n\nIt also helps me to let a neighbor know when my husband is traveling...(especially years ago when the kids were little)\n\nMake sure you feel your locks are secure. Sleep with your charged cell phone at your bedside.\n\nI keep a tealight candle lit on my dresser. It goes out on its own after 2 hours or so.
1096939
There are two schools of thought on this subject and both are correct in their own reasoning.\n\nOne side says shut down your computer because you will wear out the bearings in your hard drive. Which if you are just an occasional user this would be good advice.\n\nThe other side says leave it on or let it hibernate because the repeated temperature fluctuations of turning on and off the computer will crack the solder joints on the board. Which if you are every day user would also be good advice.\n\nWhich way to go? That would be up to you.
827606
There are two schools of thought but my tech support from Gateway said turn it off if you are gone 2 hours or more. I don't do that. I set it to hibernate at 2 hours. (In Control Panel, Power Options). However, as to lithium batteries they can 't  be ruined by overcharging. I leave my computer plugged in several days at a time.
450986
Pretty much a catch 22 question.  The answer really relies on how much use during the day when it's left on.  Turning the computer on and off numerous times throughout the day will wear on certain parts of the computer while leaving it on constantly will wear on other parts of the computer.  If the computer is used constantly throughout the day I would leave it on and ensure that it is properly cooled.  If it may only be turned on once or twice a day I would shut it off.  Hope this helps.
238854
You'll likely get various answers as I can already see.  No, it doesn't really damage it but think about this, you turn it off and then immediately turn it back on, one minute 500W (my power supply) of energy is flowing through your system and then not and then immediately it is again.  I hold the belief this causes unnecessary wear and tear on the system and if you are only going to be away from the PC for a short time, put it in standby or for longer times hibernate and shut down at night (or whever you sleep).  But, if you are having a problem with Windows and task manager is not responding, press the reset switch (if you have one) which is a far better solution than turning it off and immediately turning back on again.\n\nJust my take.
605953
You can go for standby mode if you are going for some work and want quick on after you come back. when you come back and make it on it will start quicky from where you have left. no tme wastage in starting . less power consume in standby mode and it look that system is off.
858427
it's better to turn on ur computer and keep it on as long as possible. i was not talking about u must keep ur computer working verytime even when u dont use the computer. the computer will have longer lifetime if you dont shutdown ur computer regularly, because the hard drive will have to work from the beginning eachtime you turn on the computer, it has to read from the first sector, it causes to the sooner damage of ur hard drive. but when you dont use the computer in one night, you can set the computer in hibernate mode or standby mode. by doing this, you still keep very data in ur computer safe and no hamrs to your computer. sometimes, it the computer slows down, try to restart it and after restarting, it will work faster. remember to go to the power management in control panel, set up the monitor should be turned off after 5-10 minutes in order to protect your monitors from dead pixel and make it have longer lifetime
34735
Use a night light.  Turn it on everynight before you go to bed.  I'm sure after awhile you'll forget about turning it on and won't even realize it.  Also, lots of times if you open up your curtains or blinds a little bit light from outside comes in.
163728
Turning off a lightbulb is easy. Simply leave it in the box. It will remain off.
134849
On LapTops definitely turn it off, it will wear down the battery. On desktops I will turn it off, if your not gonna use it within six hours. The reason for this is I find I have to replace more fans on computer used 24 hours than on the ones that are shut down everynight. If your cpu fan burns out while no one is using the computer, your cpu can burnout as well, costing a bit.
898329
Doubtful--btw, "night worker"  weren't you lookin to get some sleep?  Won't happen in front of the PC.  Yawn, stretch....
1128892
I'm not going to pretend that I know what it is like to do the 7 on 7 off schedule, but the transition from day to night is rough. I invested in those room darkening blinds ($10 at Walmart) and stole a pair of ear plugs from the factory I worked for. If you're in a factory, you probably agree that the industrial ear plugs are good enough that you don't hear the trash man outside, but weak enough that you can hear the alarm. The new blinds didn't make my room pitch black at night, but it helped. As far as switching the schedules, try to push yourself on Friday (or whatever your last work day is) to not go to sleep until anywhere from 8-10 that night. It'll wear you out enough that you won't be up before the crack of dawn. You'll also get enough sleep that you can enjoy the weekend "properly". Also, try to get on a sleep schedule as soon as possible. If you stick to the same schedule everyother week your body will get more used to it quicker. ie. don't stay up til noon one day and get in bed at 8 the next.
337548
Unless you have a surge protector and a backup system, it isn't recommended to leave your computer on. If lightning strikes, it can fry out the electronics in your computer.
1066131
What about just unplugging it?
1146817
This is one of those questions where there is no single right answer. In other words, it depends on how you use your computer. \n\nThere are at least three situations that force you to leave your computer on 24 hours a day: \n\nYou are on a network, and the network administrators back up files and/or upgrade software over the network at night. If that is the case, and you want your machine backed up or upgraded, then you need to leave it on all the time. \n\nYou are using your machine as some sort of server. For example, HowStuffWorks has a machine that creates the images for the How Webcams Work article. It needs to be on 24 hours a day. If your machine acts as a file server, print server, Web server, etc., on a LAN (local area network) or the Internet, then you need to leave it on all the time. \n\nIf you are running something like SETI@home and you want to produce as many result sets as possible, you need to leave your machine on all the time. \nIf you do not fall into any of these categories, then you have a choice about whether or not to leave your machine on. \nOne reason why you might want to turn it off is economic. A typical PC consumes something like 300 watts. Let's assume that you use your PC for four hours every day, so the other 20 hours it is on would be wasted energy. If electricity costs 10 cents per kilowatt-hour in your area, then that 20 hours represents 60 cents a day. Sixty cents a day adds up to $219 per year. \n\nIt's possible to use the energy-saving features build into modern machines and cut that figure in half. For example, you can have the monitor and hard disk power down automatically when not in use. You'll still be wasting $100 per year. \n\nThe argument for leaving your computer on all the time is that turning it on and off somehow stresses the computer's components. For example, when the CPU chip is running, it can get quite hot, and when you turn the machine off it cools back down. The expansion and contraction from the heat probably has some effect on the solder joints holding the chip in place, and on the micro-fine details on the chip itself. But here are three ways to look at that: \n\nIf it were a significant problem, then machines would be failing all the time. In fact, hardware is very reliable (software is a whole different story, and there is a lot to be said for rebooting every day). \nI don't know a single person who leaves the TV on 24 hours a day. TVs contain many of the same components that computers do. TVs certainly have no problems being cycled on and off. \nMost vendors will sell you a three-year full-replacement warrantee for about $150. If you are worried about it, spend some of the money you are saving by turning your machine off and buy a service contract. Over three years, you come out way ahead!