你的笔记本电脑会随机关机吗？发生这种令人痛苦的行为的原因有多种，我们将帮助您消除最常见的原因。
笔记本电脑随机关机(Laptop Shuts Off Randomly)？注意上下文
计算机是随机关闭还是仅在您执行特定操作时关闭？如果它仅在大量使用时关闭，则可能表明存在发热问题或超频(overclocking)问题。如果仅在特定应用程序打开时发生，则可能是软件问题。如果计算机因蓝屏死机而关闭，这与在没有警告的情况下切断电源是不同的。在追查原因时，关闭的细节是必不可少的。
1.检查恶意软件
假设您的计算机运行时间足够长，可以使用您选择的软件进行恶意软件扫描。(malware scan)您可能需要考虑从实时操作系统光盘启动，以防止恶意软件在清除计算机之前将其关闭。恶意软件(Malware)是这些类型的突然关闭的低概率原因，但由于恶意软件很容易检测到，因此最容易首先解决这个问题。
2. 确保足够的通风
[3 通风.jpg]([3 Ventilation.jpg])
您的台式机或笔记本电脑可能随机关闭的最常见原因是热保护。有一定的温度阈值，计算机将自行关闭以防止损坏。在此之前，台式机或笔记本电脑会降低计算机速度并加速风扇，以拼命保持凉爽。完全关闭是最后的手段。
笔记本电脑特别容易受到通风不良的影响，需要打开所有通风口，并有足够的新鲜空气进入。烹饪笔记本电脑的一种快速方法是将其放在柔软的表面（如地毯或床）上，以堵住底部通风口。如果您想在床上使用笔记本电脑，请考虑使用膝上桌(lap desk)或冷却垫，以确保有足够的空气通过机器底部。
3.清除灰尘或(Dust Or)检查散热器
如果确保有足够的通风不起作用，您可能正在处理被灰尘堵塞的通风口和风扇。对于大多数现代笔记本电脑来说，这不是一个需要解决的复杂问题。有关如何打开笔记本电脑主面板的信息，请参阅您的手册。通常，这涉及到几个螺丝（不要丢失它们！）和一个或两个夹子。笔记本电脑打开后，您可以用刷子、压缩空气或小型电子真空吸尘器清理风扇。(fans)始终遵守制造商关于除尘的具体建议。
虽然这种情况极为罕见，但值得快速检查CPU和GPU散热器是否仍然正确安装。如果散热器与它们冷却的芯片之间出现任何间隙，这将导致热量积聚，最终计算机将关闭。
4.重置BIOS，删除超频应用设置(Remove Overclocking App Settings)
如果您的笔记本电脑的BIOS设置（例如超频）被弄乱了，这可能是突然关机的原因。无需寻找错误的设置，只需将 BIOS 重置为 default(reset the BIOS to default)就容易多了。由于笔记本电脑的BIOS(BIOSes)旨在与特定的笔记本电脑配合使用，因此您通常根本不必弄乱设置。
我们试图在BIOS中重置的一件事是与超频、内存时序或电压有关。将硬件组件推出其出厂默认操作范围的任何设置。
虽然将BIOS(BIOS)重置为默认值是很好的第一步，但这还不够。如果您有任何软件可以让您从桌面超频或修改硬件设置，您还需要将其重置为默认值。如果您的计算机关闭速度比您执行此操作的速度快，您可能需要启动到安全模式(boot into Safe Mode)。如果BIOS被重置并且计算机仍然在安全(BIOS)模式下(Mode)关闭，这肯定表明问题与超频或其他不正确的硬件设置无关。
5.更新(Update)、回滚(Rollback)和维护驱动程序(Maintain Drivers)
错误(Buggy)、损坏或过时的驱动器可能会导致诸如随机关机之类的不良行为。答案是确保您的驱动程序是最新的(drivers are up to date)。如果您怀疑某个特定的硬件组件（例如GPU）导致您关机，请从设备制造商的网站（通常是笔记本电脑制造商）下载该设备的最新驱动程序并重新安装它们。
6.各种蓝屏
笔记本电脑突然关机之前通常会出现“蓝屏(Blue Screen)死机”（BSOD），即可怕的Windows错误屏幕。如果发生这种情况，请拍下屏幕照片或记下具体的错误代码，然后将其输入搜索引擎。
通常有针对常见BSOD(BSODs)的特定指南或修复程序。您可以在Online Tech Tips和Helpdesk Geek上找到大量关于BSOD修复的指南。因此，也请尝试使用您的BSOD错误搜索我们的网站！我们的 Windows 10 蓝屏死机故障排除指南(Blue Screen of Death Troubleshooting Guide for Windows 10)是一个很好的起点。
7.硬件故障
有许多小硬件问题可能会导致笔记本电脑突然关机。无法正常工作的小型电子元件、(Small)有错误的 RAM 芯片(RAM chips that have errors)以及电池或电源问题都是候选者。唯一可以确定的方法是让技术人员配备合适的设备来评估您的笔记本电脑。如果您最近使用新RAM升级了笔记本电脑，则可能值得将其取出并检查问题是否仍然存在。
您还应该断开所有外部外围设备，例如硬盘驱动器或打印机。这是为了确保它不是这些设备之一导致需要关闭以防止损坏计算机数据的严重硬件问题。
8. 操作系统问题
您的操作系统是软件代码的复杂集合，有时会出现问题，导致计算机不得不关闭。最常见的原因是系统文件损坏。大多数操作系统都具有修复安装功能，因此您可以重新安装操作系统而不会丢失数据。
但是您必须参考该操作系统的特定文档。寻找一个修复功能，它将检查所有系统文件是否存在问题并修复它们。在Windows中，您正在寻找的实用程序是系统文件检查器(System File Checker)。查看高级 Windows 系统清理命令 - SFC 和 DISM(Advanced Windows System Cleanup Commands – SFC and DISM)了解更多信息。
9. 屏幕铰链问题
您的笔记本电脑的屏幕铰链是一个复杂的机制，容易磨损，同时包含许多敏感和微妙的连接。一种可能性是笔记本电脑盖中的传感器告诉计算机它已关闭，而实际上它没有关闭。因此，它会在不应该发送睡眠或关机信号时发送。要消除这种可能性，请转到笔记本电脑的电源设置。
在 Windows 中，这是Start > Settings Cog > System > Power & Sleep > Additional Power Settings > Change what close the lid does( Change what closing the lid does)。
在这里，您可以选择将盖子设置为在插入时对电池不做任何事情，或两者兼而有之。将(Set)两者都设置为“无”，看看问题是否消失。如果是这样，铰链可能需要合格技术人员的注意。
10. 电源设置问题
您的笔记本电脑可能随机关闭的最后一个原因是您的电源设置可能不正确。例如，如果您的电源设置未设置为在播放视频时保持计算机处于唤醒状态，则它可能会在电影播放到一半时关闭。查看笔记本电脑的电源设置，确保它们适合您的需求。
有时它是一台随机打开的计算机，这就是问题所在。检查您的计算机是否自行随机开启？(Does Your Computer Randomly Turn On By Itself?)如果您怀疑机器中有幽灵。
Laptop Shuts Off Randomly? 10 Possible Fixes
Does your laрtоp shut off rаndomly? There are νаrious reasоns why this distressing behаvior could be happеning, and we’re going to help yoυ eliminate the most сommon onеs.
Laptop Shuts Off Randomly? Note the Context
Does the computer shut down randomly or only when you do specific things? If it shuts down under heavy use only, that may point to heat issues or overclocking problems. If it only happens when particular applications are open, it may be a software issue. If the computer shuts off with a blue screen of death, that’s different from the power being cut out without warning. The specifics of the shutdown are essential when it comes to tracking down the cause.
1. Check for Malware
Assuming your computer stays on long enough to do this, start with a malware scan using the software of your choice. You may want to consider booting from a live operating system disc, preventing the malware from shutting down your computer before it can be cleaned. Malware is a low-probability cause for these types of sudden shutdowns, but since malware is easily detected, it’s easiest to get this out of the way first.
2. Ensure Adequate Ventilation
[3 Ventilation.jpg]
The most common reason your desktop or laptop may shut off randomly is thermal protection. There’s a certain temperature threshold where the computer will turn itself off to prevent damage. Before this, the desktop or laptop will throttle the computer speed and rev up the fans in a desperate attempt to keep cool. Shutting off completely is the last resort.
Laptops are particularly susceptible to poor ventilation and need all their vents open, with enough access to cool fresh air. A fast way to cook your laptop is to block the bottom vents by putting it on a soft surface like a carpet or bed. If you want to use your laptop in bed, consider using a lap desk or a cooling pad to make sure there’s enough air getting through to the bottom of the machine.
3. Remove Dust Or Check The Heatsinks
If making sure there’s enough ventilation doesn’t do the job, you may be dealing with vents and fans clogged with dust. For most modern laptops, this isn’t a complex problem to solve. Refer to your manual on how to open the main panel of the laptop. Usually, this involves a few screws (don’t lose them!) and a clip or two. Once the laptop is open, you clean out the fans with a brush, compressed air, or perhaps a tiny electronics vacuum. Always adhere to the manufacturer’s specific advice on dust removal.
While this is exceedingly rare, it’s worth quickly inspecting whether the CPU and GPU heatsinks are still correctly mounted. If the heatsinks have developed any gap between themselves and the chips they cool, this will cause heat buildup, and eventually, the computer will shut down.
4. Reset the BIOS, Remove Overclocking App Settings
If your laptop’s BIOS settings (such as overclocking) have been messed with, that could be the cause of the sudden shutdown. Instead of looking for the errant setting, it’s much easier just to reset the BIOS to default. Since laptop BIOSes are designed to work with that specific laptop, you generally don’t have to mess with the settings at all.
One of the things we’re trying to reset in the BIOS is anything to do with overclocking, memory timings, or voltages. Any setting that pushes a hardware component out of its factory default operating range.
While resetting the BIOS to default values is a good first step, it’s not enough. If you have any software that lets you overclock or modify hardware settings from the desktop, you’ll need to reset that to default as well. If your computer is shutting down faster than you can do this, you may want to boot into Safe Mode. If the BIOS is reset and the computer still shuts down in Safe Mode, that’s a sure sign that the problem isn’t related to overclocking or other improper hardware settings.
5. Update, Rollback, and Maintain Drivers
Buggy, corrupt or outdated drives can be behind unwanted behaviors such as random shutdowns. The answer is to make sure that your drivers are up to date. If you suspect a particular hardware component (such as the GPU) is behind your shutdowns, then download the latest drivers for that device from the device manufacturer’s website (usually the laptop manufacturer) and reinstall them.
6. Various BSODs
A sudden laptop shutdown is often preceded by a “Blue Screen of Death” (BSOD), the scary Windows error screen. If that happens, take a photo of the screen or write down the specific error code and then type it into a search engine.
There’s usually a particular guide or fix for common BSODs. You’ll find plenty of guides for BSOD fixes on Online Tech Tips and Helpdesk Geek. So try searching our sites with your BSOD error too! A good place to start is our Blue Screen of Death Troubleshooting Guide for Windows 10.
7. Hardware Failure
There are many minor hardware problems that could trigger a sudden shutdown of your laptop. Small electronic components that aren’t working correctly, RAM chips that have errors, and problems with your battery or power supply are all candidates. The only way to be sure is to have a technician with the right equipment assess your laptop. If you’ve recently upgraded your laptop with new RAM, it may be worth taking it out and checking if the problem persists.
You should also disconnect all external peripherals such as hard drives or printers. This is to ensure that it’s not one of these devices causing a severe hardware issue that requires a shutdown to prevent damage to your computer’s data.
8. Operating System Problems
Your operating system is a complex collection of software code, and sometimes things go wrong in such a way that the computer has to shut down. The most common reason for this is system file corruption. Most operating systems have a repair install function, so you can reinstall the OS without losing your data.
But you’ll have to refer to the specific documentation for that operating system. Look for a repair function that will check all system files for problems and fix them. In Windows, the utility you’re looking for is the System File Checker. Have a look at Advanced Windows System Cleanup Commands – SFC and DISM for more information.
9. Issues With The Screen Hinge
Your laptop’s screen hinge is a complex mechanism subject to wear and tear while containing many sensitive and delicate connections. One possibility is that the sensor in your laptop lid is telling the computer that it’s closed when it isn’t. So it sends the sleep or shutdown signal when it shouldn’t. To eliminate this as a possibility, go to the power settings for your laptop.
In Windows, this is Start > Settings Cog > System > Power & Sleep > Additional Power Settings > Change what closing the lid does.
Here you can choose to set the lid to do nothing on the battery while plugged in, or both. Set both to “nothing” and see if the problem goes away. If it does, the hinge might need attention from a qualified technician.
10. Problems With Power Settings
The last reason your laptop might shut off randomly is that your power settings might not be correct. For example, if your power settings aren’t set to keep the computer awake while you’re playing a video, it might shut off halfway through movies. Review your laptop’s power settings and make sure they’re suitable for your needs.
Sometimes it’s a computer that randomly turns ON that’s the problem. Check out Does Your Computer Randomly Turn On By Itself? if you suspect there’s a ghost in the machine.
