你的电脑会自己关机吗？你甚至不能登录到你的电脑，因为它在你输入密码之前就自动关机了？那么请不要担心，因为您是每年都面临此问题的数千名用户中的一员，并且此问题的最可能原因是您的 PC 过热。嗯，这个问题有点像这样：
你的电脑会在你使用它时突然关闭，没有警告，什么都没有。当您尝试重新打开它时，它会正常启动，但一旦您进入登录屏幕，它就会再次自动关闭，就像以前一样。一些用户通过登录屏幕并可以使用他们的 PC 几分钟，但最终他们的 PC 也再次关闭。现在它只是卡在一个循环中，无论您重新启动多少次或在重新启动前等待几个小时，您总是会得到相同的结果，即无论您做什么，您的计算机都会自行关闭。
在这种情况下，用户尝试通过断开键盘或鼠标的连接，或以安全模式(Safe Mode)启动 PC等来解决问题。但结果将是相同的，即 PC 将自动关闭。现在只有两个主要原因会导致系统突然关闭，电源故障或过热问题。如果 PC 超过预先配置的温度，系统将自动关闭。现在，这样做是为了避免损坏您的 PC，这是一种故障保险。因此，不要浪费任何时间，让我们看看如何在下面列出的故障排除指南的帮助下自动关闭计算机。(Fix)
如何修复计算机(Fix Computer)自动关闭
确保 创建一个还原点(create a restore point)，以防万一出现问题。
方法一：运行CCleaner和Malwarebytes（如果可以登录Windows）(Method 1: Run CCleaner and Malwarebytes (If you can log in to Windows))
1. 下载并安装 CCleaner & Malwarebytes。
2. 运行 Malwarebytes(Run Malwarebytes)(Run Malwarebytes)并让它扫描您的系统以查找有害文件。如果发现恶意软件，它将自动删除它们。
3. 现在运行 CCleaner 并选择 Custom Clean。
4. 在自定义清理下，选择 Windows 选项卡(Windows tab)并勾选默认值，然后单击 分析(Analyze)。
5. 分析完成后，确保您确定要删除要删除的文件。(Once Analyze is complete, make sure you’re certain to remove the files to be deleted.)
6. 最后，点击 Run Cleaner 按钮，让CCleaner运行。
7. 要进一步清理您的系统，请 选择注册表选项卡(select the Registry tab)，并确保选中以下内容：
8. 点击 Scan for Issues 按钮并允许CCleaner扫描，然后点击 Fix Selected Issues 按钮。
9. 当 CCleaner 询问“您要备份对注册表的更改吗？(Do you want backup changes to the registry?)” 选择是( select Yes)。
10. 备份完成后，单击 修复所有选定问题(Fix All Selected Issues) 按钮。
11. 重新启动您的 PC 以保存更改。
方法二：关闭快速启动(Method 2: Turn Off Fast Startup)
1. 按Windows Key + R然后键入 control 并按Enter打开控制面板。(Control Panel.)
2. 单击硬件和声音，(Hardware and Sound)然后单击电源选项。(Power Options.)
3. 然后，从左侧窗格中选择“选择电源按钮的功能”。( “Choose what the power buttons do.“)
4. 现在点击“更改当前不可用的设置”。(“Change settings that are currently unavailable.“)
5. 取消勾选“开启快速启动(Turn on fast startup)”并点击保存更改(Save changes)。
方法3：操作系统问题(Method 3: Issue with operating system)
问题可能与您的操作系统而不是硬件有关。要验证是否是这种情况，您需要打开 PC 电源，然后进入 BIOS(Enter BIOS)设置。现在进入BIOS，让您的计算机闲置，看看它是否像以前一样自动关闭。如果您的 PC 没有关闭，则这意味着您的操作系统已损坏，需要重新安装。请参阅此处如何修复安装 Windows 10(how to repair install Windows 10)以修复计算机自动关闭。(Fix Computer turns off automatically.)
方法 4：检测过热问题(Method 4: Detecting Overheating Issue)
现在您需要验证问题是否仅仅是由于过热或电源故障引起的，为此，您需要测量 PC 的温度。执行此操作的免费软件之一是Speed Fan。
下载(Download)并运行Speed Fan应用程序。然后检查计算机是否过热。检查温度是否在定义的范围内，或者是否高于它们。如果您的温度读数远高于正常值，那么这意味着它是过热的情况。按照下一个方法解决过热问题。
方法五：除尘(Method 5: Cleaning the dust)
注意：如果您是新手，请不要自己动手，请寻找可以清洁您的 PC 或笔记本电脑灰尘的专业人员。最好将您的 PC 或笔记本电脑带到服务中心，他们会为您执行此操作。打开 PC 机箱或笔记本电脑也可能导致保修失效，因此请您自担风险继续操作。
确保清洁电源(Power Supply)、主板(Motherboard)、RAM、通风口、硬盘上的灰尘，最重要的是散热器(Heat Sink)上的灰尘。最好的方法是使用鼓风机，但确保将其容量设置为最小，否则会损坏系统。请勿使用布或任何其他硬质材料清洁灰尘。您也可以使用刷子清除 PC 上的灰尘。清理灰尘后看看你是否能够修复计算机自动关闭问题，(Fix Computer turns off automatically issue,)如果没有，则继续下一个方法。
如果可能，请查看散热器是否在您的 PC 开机时工作，如果散热器不工作，您需要更换它。此外，请确保从主板上卸下风扇(Fan)，然后用刷子清洁它。如果您使用笔记本电脑，最好为笔记本电脑购买冷却器，让热量轻松地从笔记本电脑传递出去。
方法六：电源故障(Method 6: Faulty Power Supply)
首先(First)，检查电源(Power Supply)是否有灰尘。如果是这种情况，请尝试将电源上的灰尘全部清理干净，并清洁电源的风扇。如果可能的话，试着打开你的电脑，看看电源单元是否工作，检查电源的风扇是否工作。
有时，电缆松动或故障也可能是问题所在。要更换将电源单元 ( PSU ) 连接到主板的电缆，请检查这是否能解决问题。但是，如果您的计算机仍然没有任何警告就自动关闭，则需要更换整个电源单元(Power Supply Unit)。购买新电源装置时，请根据计算机制造商推荐的额定值检查其额定值。看看您是否能够修复更换电源后计算机自动关闭的问题。(Fix Computer turns off automatically issue)
方法 7：硬件相关问题(Method 7: Hardware related issues)
如果您最近安装了任何新的硬件组件，则会导致您的计算机(Computer)自动关闭这个问题。即使您没有添加任何新硬件，任何出现故障的硬件组件也可能导致此错误。因此，请确保运行系统诊断测试并查看一切是否按预期工作。
受到推崇的：(Recommended:)
就是这样，您已经成功地学习了如何修复计算机自动关闭(How to Fix Computer turns off automatically) 问题(issue)，但是如果您对本指南仍有任何疑问，请随时在评论部分询问他们。
How to Fix Computer turns off automatically
Is your computer turnіng off by itself? You can’t even lоg in to your PC as it automatically shutdоwns before you could even type the password? Then don’t worry as you’re among thоusands of users who face thiѕ issue every year and the most probable cause of this issue is overheating of your РC. Well, the issue occurѕ somewhat like thiѕ:
Your PC will suddenly shut down while you’re using it, no warning, nothing. When you try to turn it back on, it will start normally, but as soon as you get to the login screen, it will again turn off automatically, just like before. Some users get past the login screen and can use their PC for a few minutes, but ultimately their PC also shut down again. Now it just stuck in a loop and no matter how many time you restart or wait for few hours before restarting you will always get the same results, .i.e. your computer will turn off itself, no matter what you do.
In cases like this users try to troubleshoot the issue by disconnecting keyboard or mouse, or starting PC in Safe Mode, etc.. but the outcome will be same, which is the PC will turn Off automatically. Now there are only two main reasons that can cause your system’s sudden shutdown, the faulty power supply or overheating issue. If a PC gets over the pre-configured temperature, the system will shut down automatically. Now, this happens to avoid damaging your PC, which is a failsafe. So without wasting any time let’s see How to Fix computer turns off automatically with the help of the below-listed troubleshooting guide.
How to Fix Computer turns off automatically
Make sure to create a restore point, just in case something goes wrong.
Method 1: Run CCleaner and Malwarebytes (If you can log in to Windows)
1. Download and install CCleaner & Malwarebytes.
2. Run Malwarebytes and let it scan your system for harmful files. If malware is found, it will automatically remove them.
3. Now run CCleaner and select Custom Clean.
4. Under Custom Clean, select the Windows tab and checkmark defaults and click Analyze.
5. Once Analyze is complete, make sure you’re certain to remove the files to be deleted.
6. Finally, click on the Run Cleaner button and let CCleaner run its course.
7. To further clean your system, select the Registry tab, and ensure the following are checked:
8. Click on the Scan for Issues button and allow CCleaner to scan, then click on the Fix Selected Issues button.
9. When CCleaner asks “Do you want backup changes to the registry?” select Yes.
10. Once your backup has completed, click on the Fix All Selected Issues button.
11. Restart your PC to save changes.
Method 2: Turn Off Fast Startup
1. Press Windows Key + R then type control and hit Enter to open Control Panel.
2. Click on Hardware and Sound then click on Power Options.
3. Then, from the left window pane select “Choose what the power buttons do.“
4. Now click on “Change settings that are currently unavailable.“
5. Uncheck “Turn on fast startup” and click on Save changes.
Method 3: Issue with operating system
The issue maybe with your operating system rather than the hardware. To verify if this is the case, you need to Power ON your PC and then Enter BIOS setup. Now once inside BIOS, let your computer sit idle and see if it shut down automatically as before. If your PC doesn’t shut down, then this means your operating system is corrupt and needs to reinstall it. See here how to repair install Windows 10 to Fix Computer turns off automatically.
Method 4: Detecting Overheating Issue
Now you need to verify if the issue is merely caused by overheating or the faulty power supply, and to that, you need to measure your PC’s temperature. One of the freeware to do this is Speed Fan.
Download and run the Speed Fan application. Then check whether the computer is overheating or not. Check whether the temperature is within the defined range, or is it above them. If your Temperature reading is way above normal, then this means it’s a case of overheating. Follow the next method to solve the overheating issue.
Method 5: Cleaning the dust
Note: If you’re a novice user, don’t do this yourself, look for professionals who can clean your PC or laptop for dust. It’s better to take your PC or laptop to the service center where they would do this for you. Also opening the PC case or laptop can void the warranty, so continue at your own risk.
Ensure clean dust settled on Power Supply, Motherboard, RAM, air vents, hard disk and most importantly on Heat Sink. The best way to do this is to use a blower but make sure to set its capacity to the minimum, or you will damage your system. Don’t use a cloth or any other hard material to clean the dust. You could also use a brush to clean dust from your PC. After cleaning the dust see if you’re able to Fix Computer turns off automatically issue, if not then continue to next method.
If possible see if the heatsink works while your PC powers ON if the heatsink doesn’t work, you need to replace it. Also, make sure to remove the Fan from your motherboard and then clean it using a brush. If you use a laptop, it would be a good idea to buy a cooler for the laptop, allowing heat to pass from the laptop easily.
Method 6: Faulty Power Supply
First, of all check, if there is dust settled on Power Supply. If this is the case, try to clean all the dust on the power supply and clean the fan of the power supply. If possible, try to turn ON your PC and see if the power supply unit works and check if the fan of the power supply is working.
Sometimes a loose or faulty cable can also be the problem. To replace the cable which connects the power supply unit (PSU) to the motherboard, check if this fixes the issue. But if your computer still turns off automatically without any warning, you need to replace the whole Power Supply Unit. While purchasing a new power supply unit, check its ratings against the recommended ratings by your computer manufacturer. See if you’re able to Fix Computer turns off automatically issue after replacing the Power Supply.
Method 7: Hardware related issues
If you have recently installed any new hardware component, then it causes this issue where your Computer turns off automatically. Even if you haven’t added any new hardware, any failing hardware component can also cause this error. So make sure to run a system diagnostic test and see if everything is working as expected.
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That’s it you have successfully learned How to Fix Computer turns off automatically issue but if you still have any queries regarding this guide then feel free to ask them in the comment’s section.
