A hard reboot refers to the process of physically removing the power from a computer and starting it back up. A soft reboot refers to the process of shutting down and restarting an operating system, and possibly restarting the computer hardware (initiated by software).

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How does a computer restart itself?

How can a computer restart itself? After it's off, how does it tell itself to come back on again? What kind of software is it that can do this?
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Boot Camp: is it possible to restart directly to Windows from Mac OS X?

With the Boot Camp tools installed on Windows, there's an option for rebooting directly to Mac OS ("Restart in Mac OS X" from Boot Camp system tray item). But is this possible in the opposite ...
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Remotely turning on or rebooting a frozen computer

I use a remote desktop program (usually Microsoft's Remote Desktop) to connect to a Windows machine everyday. The remote computer has a fixed IP address, and if the computer is on and responsive, I ...
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How do I restart Linux (Ubuntu) from the command-line?

Because of my problem with mouse-clicks being ignored in Ubuntu, I want to restart from the command-line. (I have an open Terminal, and the keyboard is not ignored.) How do I restart a computer ...
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When I am prompted to restart after uninstalling software, is a shutdown okay too?

When I'm uninstalling an application it says that I should either restart the computer now, or manually restart later. Will it make any difference if I shut down the computer instead? What's the ...
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How do you shutdown or restart a Windows computer over a Remote Desktop connection?

When I connect to my Windows 7 desktop computer via Remote Desktop (MSTSC.exe), the options under the Start Menu are "Log Off" (the default), "Lock", and "Disconnect". How do I restart (or shutdown)?
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1answer
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How urgent is a *** System restart required *** for security?

To learn a bit of server administration I've set up a simple Ubuntu 14.04 server on which I run a personal website. I've set it to automatically install security updates, but leave out the other ...
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7answers
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Why do I need restart computer after installing new software?

Why is it sometimes that I need to restart my computer after installing new software and at other times I don't? Is there any reason why it needs this reboot or why it's not always one way or the ...
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1answer
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Resuming Windows 7 from Hibernate after a RAM change?

I ordered a pair of new DDR3 RAMs, I will install them to the empty RAM slots once they arrive. What would happen if I hibernate my PC, then install the new RAMs, and then wake it up from ...
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6answers
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How to shut down the computer without the update on Windows 7?

Sometimes when my Win 7 machine has programs that crashed, maybe Firefox, or IE, I would like to shut down the computer without installing any Windows update. That's because I worry that if IE or ...
20
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5answers
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How can I stop windows from rebooting after an automatic update?

I like Windows to keep itself up to date via the automatic updates, but sometimes it does that when I'm not at the computer and it's doing something critical, like downloading the latest stack ...
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Why does restarting a computer fix things?

The title say sit all, but why does restarting a computer tend to fix things? It seems like IT folks always ask, "Have you restarted your PC?" But Why?
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4answers
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Why the multiple reboots installing Windows 7?

I just installed Windows 7 on my non-PC and was struck by how many times the Windows installer reboots during installation. It even tells you on the screen during installation that the computer will ...
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5answers
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Disable Auto-Restart Prompt after Windows Update (in Windows Vista/7)

I've mastered how to disable/delay the Automatic Restart prompt after Windows Update deems it necessary to restart my computer in XP. But, now I'm using both Windows 7 and Vista and that method no ...
12
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4answers
6k views

Can PSU cause my PC to reboot?

I'm having an issue with my PC: It is rebooting sometimes, and I am suspecting the PSU, so I want to confirm a few things. It is a new PC and the first issues started occuring roughly one month after ...
12
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4answers
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Difference between shutting down and turning on vs. restart in Windows 8?

In Windows 8, is there a difference between: Shutting down my computer (inside W8) and then instantly turn it back on again vs. Restarting it from inside Windows 8 Edit: Talking about normal Windows ...
11
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4answers
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how can I restart redmine?

Redmine has to be restarted after a plugin installation. How can I do that on linux? Does it mean to restart my web server (nginx in my case)? Or do I have to do something else?
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2answers
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Windows 8 uptime not resetting after restart or shut down

Memory continuously rises, probably because of various applications that I run including Chrome, and it starts to choke out windows so I try to reboot it after 3-4 days at the most. When I am in the ...
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1answer
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Why Windows needs reboot a lot more than Linux?

I use both Ubuntu and Windows XP. One thing that catches my attention for a long time is the high need for reboots in Windows. Most of the time when I install a program, Windows requests to reboot ...
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2answers
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Make GNU screen survive reboot

I am using GNU screen a lot. I find it very annoying that everytime the server has to be rebooted I lose all my sessions (even if I know in advance, I need to set-up everything again). I've searched ...
11
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3answers
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Restore work space after reboot? [duplicate]

Is there a way to reboot windows 7 with the option of saving the current working session and restoring it after reboot? So after reboot, my browser is automatically launched without losing any tabs, ...
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votes
3answers
5k views

Why does Adobe Acrobat Reader require a restart on update?

Why does Adobe Acrobat Reader require a restart when you update it? It's a piece of software that reads PDFs. Just what else is it installing/updating that requires a total OS reboot to "complete" ...
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7answers
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How to diagnose a spontaneous reboot?

My computer reboots, seemingly completely at random, about once every week to two weeks but has occasionally gone months. It just goes from running fine to the POST with no error messages or anything ...
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9answers
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Why does my computer freeze and make a terrible buzzing noise every once in a while?

Twice now my computer has frozen, accompanied by a terrible, angry, buzzing/beeping noise through the speakers. It is my first build, and as such I'm not really educated enough to even make a guess ...
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5answers
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Restoring open software after a restart event in windows

I find that at the end of a long day, I sometimes have a large number of programs running. All which I will need to use tomorrow. Normally, this isn't an issue, I can simply lock the machine and come ...
9
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0answers
398 views

How does rebooting a computer work? [duplicate]

Possible Duplicate: How does a computer restart itself? How does a computer's reboot command actually work? How is the computer told that it shouldn't stay down after powering off, and ...
8
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3answers
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How do I restart redis that I installed with brew?

I used brew to install redis (a key/value store database server) for my node.js app. brew install redis However, it seems to disappear and is very volatile. Because I'm using redis as my session ...
8
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475 views

Must I reboot after installing software when I know I need to install a 2nd package that requires reboot?

Say I install software package A which says I must reboot to finish the install. I also need to install package B which will also require a reboot. Is it advisable to reboot after installing A and ...
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4answers
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Linux : To monitor a Service and restart if stopped?

Actually I'm not so sure whether i should use Shell Scripts, or if there some ways already. But whatever approach we use, i would like to keep a Service running all the time. Let's say iptables as an ...
8
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6answers
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Why does restarting/resetting the router work?

So, I'm a technology guy and sometimes I have to troubleshoot a home network, including my own. I make sure the wires are in securely and that the lights suggest there's an actual internet connection. ...
8
votes
4answers
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Stop Windows 7 from forcefully shutting itself down when waiting to update

I have had this happen to me twice now. I'll be in the middle of working on something that has resulted in me not rebooting my machine for several days. If Windows 7 is waiting to install updates ...
7
votes
6answers
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How can I tell when my PC was restarted?

My office PC restarts every Sunday at an unknown time for unknown reason. I wish to know when my PC restarts and most importantly reason for which it restarts. I suspect that there is a third party ...
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votes
8answers
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What can I do to preserve tabs when restarting Firefox?

In the Add-ons window, if I enable/disable an Extension, a yellow bar with a "Restart Firefox" button appears. This tells me "Firefox will try to restore your tabs and Windows when it restarts." I ...
7
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3answers
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Why would I need a reboot after installing? [duplicate]

Possible Duplicate: Why do I need restart computer after installing new software? That is to say, what might installing an application do such that it might require a reboot? Corollary ...
7
votes
1answer
687 views

Why sudo is needed for rebooting in terminal but not from the GUI?

When I turn on my machine and I log in to my account I can do whatever I want and even shutdown my machine or say reboot. But if I open terminal and try to run the command reboot or shutdown then I ...
7
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3answers
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My computer reboots when I tell it to shutdown

There are about 40 computers at work with this problem. They all have an ASUS P5KPL/1600 motherboard. They are all running SUSE Linux 11.1. When I tell the computer to shutdown either through the UI ...
7
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3answers
823 views

How to automatically boot from Linux distro to Windows?

Here's the thing: I've got dual boot computer with Ubuntu 8.04 and XP Pro. Sometimes I want to switch between these two. To do this I need to issue "Reboot" in Ubuntu, wait for grub menu and choose XP ...
6
votes
1answer
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How to reboot another Mac via Terminal?

Recently my main computer freezes up more often, and instead of giving him the hard treatment by pushing the power button, I'd rather reboot him gently. So I grab my laptop, fire up Terminal and ...
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4answers
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Does shutdown/reboot need root privileges under Linux? [closed]

Why do I need to be root to shutdown/reboot my computer from the terminal? Doing so via the GUI menu doesn't require root privileges.
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votes
2answers
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Auto-restart process on crash [duplicate]

I have a Java server process which runs native code and the possibility of the entire process crashing due to a problem in native code is always there. Is there any mechanism offered by *nix operating ...
6
votes
1answer
8k views

What is the difference between the shutdown, halt and reboot commands?

Should I be using one or the other for different things?
6
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3answers
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Difference between shutdown ( power off ) and restart ( reboot )

What is Difference between shutdown (power off) and restart (reboot) ? What type of signals passing at time of reboot and poweroff, to where ? What is difference between these two signals ? At ...
6
votes
1answer
800 views

Why does Mac OS X need to reboot for updates so often?

This may come across as a rant, but I seriously want to know if there is a valid reason for this. One of the great things about Windows 7 is I can update just about anything, even video drivers, ...
6
votes
4answers
5k views

PC restarts while booting

My problem is that my PC restarts while booting. The BIOS shows up, it shows that all HDDs are found and RAM is checked. But when the XP booting screen should appear, my PC just restarts and starts ...
6
votes
2answers
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What is the correct way to prevent non-root users from issuing shutdowns or reboots

Let's say that you have set up a multi-seat system for use in a school or library, allowing GDM to launch multiple X sessions to run simultaneously with different users/keyboards/monitors. By default ...
6
votes
1answer
361 views

What is the purpose of the magic numbers in Linux reboot?

On the Wikipedia page for Linus Torvalds, it is stated: The Linux kernel's reboot system call accepts their dates of birth (written in hexadecimal) as magic values. The documentation for the ...
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votes
5answers
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Setting language for non-Unicode programs broke Windows?

I occasionally use programs originally designed to run in Japan using Microsoft AppLocale. When loading a program this way, AppLocale specifies that it's only designed to be a temporary solution and ...
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votes
3answers
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Restart Ubuntu sound processes via command line

I tried to hibernate Ubuntu (which fails, but thats another issue) and resumed my system. After this, the sound doesn't get played. What command can/should I run to restart the ubuntu sound system.
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votes
3answers
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Windows XP reboots immediately

Disclaimer: This is happening on my grandma's computer, I'm looking for a few tips before I go over there and try to fix it. This is the thing: Last night there was a storm. For some reason, my ...
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4answers
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Make Windows 7 shutdown/restart more graceful

After a few days it inevitably comes round that I need to restart my machine. (Gut feeling that things would be better after a reboot or just plain old Windows update). There's a screen that pops up ...