Accidentally Download Malware on Your Computer - How to Fix

恶意软件会导致系统性能下降，使计算机运行缓慢并经常出现死机或死机的情况。如果您不小心在计算机上下载了恶意软件或病毒，幸运的是，我们将在 MiniTool 解决方案的综合指南中告诉您如何处理。

Once you find any suspicious signs of malicious software or accidentally downloaded malware on your machine, immediately take the following measures to secure your data.

Step 1. Disconnect Your Network

To counter accidentally download malware, immediately disconnect your internet when you realize you’ve accidentally downloaded malware. This move can prevent the malware from spreading further, communicating with remote servers, stealing personal data, or allowing threat actors to spy on you.

For Ethernet, unplug the cable;

For Wi-Fi, click the Wi-Fi icon in the bottom-right corner to disconnect.

Note that stay offline until you’ve properly assessed and removed the malware.

Step 2. Boot into Safe Mode

To stop accidental malware execution, the second action should be to boot your computer into Safe Mode. In this mode, your system only uses minimal resources and runs the necessary drivers. It prevents malware from spreading and reduces the chance that the infection will interfere with antivirus scans or any corrective actions, making it easier to remove the malware. To do so.

Step 1. Head to Settings > Update & Security > Recovery, and click Restart Now under Advanced Startup to enter Windows RE.

Step 2. Then, look for Troubleshoot > Advanced Options > Startup Settings > Restart. Upon restart, press 4 or F4 on the keyboard to start Windows PC in Safe Mode.

Step 3. Perform a Full Scan with Windows Defender

How to fix accidentally downloaded malware? Now, all is set and prepared for action. It’s time to perform a full system scan with Microsoft Defender to detect any threats, cooperating with a reputable third-party antivirus to check and remove any problematic files or software.

Step 4. Check for Suspicious Programs

Given that some advanced malware can disguise itself as a normal program running in the background, it highly suggests you manually check your system for suspicious or unauthorized programs.

To do so, go to Settings > Apps, and carefully check the list of installed apps. If you see any unfamiliar or suspicious programs, just uninstall them.

Also see: The Different Types of Malware and Useful Tips to Avoid Them

Step 5. See Unusual Resource Usage

Some malwares can run quietly in the background, consuming CPU and disk resources to slow down your system. It’s very possible because you accidentally download malware.

要查找任何异常的资源使用情况，请右键单击开始，然后选择任务管理器。在进程选项卡下，查找并右键单击任何使用高资源的进程，然后选择打开文件位置以删除源文件。这样可以停止资源消耗。

步骤 6. 监控启动应用程序

恶意软件可以隐藏在启动程序中，每当您启动计算机时就会自动启动。检查恶意进程。

步骤 1. 右键单击​​ Win 图标并选择 任务管理器。

步骤 2. 前往启动选项卡，然后右键单击那些有问题的应用程序以禁用 他们。或者选择打开文件位置删除应用程序的源文件。

步骤7.检查您的浏览器是否有感染迹象

互联网是恶意软件的主要来源感染，我们主要通过网络浏览器访问它。这样，就必须确保恶意软件不会劫持您的浏览器来监控您的在线活动、注入广告或重定向您的搜索。要验证这一点，请查找表明您的浏览器已被入侵的迹象。

您应该检查什么？

• 检查并删除不熟悉或可疑的扩展程序
• 更改默认值搜索引擎
• 清除cookies和缓存数据

如果您在浏览时遇到不寻常的弹出广告，请尝试删除浏览器应用程序并重新安装。

备份数据以保护电脑

保护数据的最佳方法是创建为他们提供备份。说到数据备份，MiniTool ShadowMaker 为您提供了数据保护和灾难恢复解决方案。无论是文件和文件夹备份，磁盘和分区备份，甚至Windows系统备份，它都可以支持。因此，我们建议您下载并尝试 MiniTool ShadowMaker 以确保您的数据安全。

结论

综上所述，您可以采取上述步骤来遏制病毒的传播当您怀疑自己不小心下载了恶意软件时，请立即感染。之后，请注意继续监视您的计算机几天。记得定期备份重要数据。

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