Turning off and turning on multiple times a day the computer,is it bad?

[Nick2029]

Hi there I would like to ask you if it is bad, turning off and turning on multiple times a day the computer.I want to take my pc and watch some movies in living room but I am afraid that if I shut down the computer many times a day it will be harmful for the pc
Can someone expert help?

[camerongray]

Not at all.  There are some people that believe that turning a PC on and off regularly is bad but there is no real proof of this.

Even if it did shorten the life, the computer would still likely be too old to use before it completely fails!

Personally I sleep my computer when I plan on using it again soon (Within a couple of hours) but that is down to being able to resume where I left off rather than trying to protect the lifespan of the machine.

[Geek-9pm]

I agree. Now if there turns out to be some real problem with frequent power on.off cycling, somebody will fix it.
A related tissue is the a power consumption of leaving the computer on.

[evilfantasy]

There is also heat. For a computer heat is one of the biggest enemies. Powering down cools it all the way down and that is a good thing.

[Allan]

Some very knowledgeable folks leave their systems on 24/7 while others power down every night. I do the latter. As is explained above, there is no proof that one is better than the other. I CAN tell you that powering on and off several times a day is not good since the most stress on electronic components occurs when they are powered on. Also, you should set your hd and display to power down after a defined period of inactivity to reduce unnecessary wear on the hd and save on power.

[Nick2029]

Thank's for the answers but now I am more confused guys!If I understand correctly there is no right answear for my question?Meaning that some experts say that problems may occur with turning off and on several times a day the computer while other say that there is no problem?

[Geek-9pm]

I said earlier, if they can find it to be a problem, they can fix it.

 Windows has a method of reducing power when the system is not active. Users can employ this to reduce wear on components without the need to do a full power off.

But the issue is how to you prove there is any benefit or loss? It would take months of testing to find out if one configuration is better than  another.
Notice this Wikipedia. It needs some work. Hard to find a definitive answer.
http://en.wikipedia.org/wiki/PC_power_management

Also, besides the obvious question, there is the issue of not turning of you PC if it is still doing something significant. The OS may have background tasks that perform useful services more important that the issue of component life. Like a virus scan. Disk fragmentation.  File synchronization.  Streaming a video to a network user.

[BC_Programmer]

Some components wear out faster from repeated power cycles (hard drive motors) while others wear out faster from being in-use constantly (many electrical components). IMO the advantages and disadvantages just cancel each-other out, meaning that whether you power on off should depend on your own personal use case; for example considerations about the noise, power consumption, or whether you would like to be able to use it as quickly as possible without waiting for it to start.

[patio]

Bottom line...
Turn it off when you want...
Leave it on when you want.
It's a nebelous question that has no qualified answer...