Microsoft Defender is the default antivirus software that comes pre-installed on Windows computers. It is a free and effective antivirus program that can protect your computer from malware and other threats. However, Microsoft Defender has been criticized for its impact on the performance of a computer.
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In a recent study by AV-Test, Microsoft Defender was found to have a significant impact on the performance of a computer. The study found that Microsoft Defender increased the CPU usage of a computer by an average of 10%. This can lead to a noticeable slowdown in the performance of a computer, especially on older or less powerful machines.
Microsoft Defender also had a negative impact on the battery life of a computer. The study found that Microsoft Defender reduced the battery life of a computer by an average of 15%. This can be a major problem for users who rely on their laptops for work or school.
The performance impact of Microsoft Defender is due to the way that it scans files. Microsoft Defender scans all files that are opened or executed on a computer. This can be a time-consuming process, especially on large files. The scanning process can also use up a significant amount of CPU and battery power.
There are a few things that you can do to reduce the performance impact of Microsoft Defender. One thing that you can do is to disable real-time scanning. Real-time scanning scans all files as they are opened or executed. Disabling real-time scanning will reduce the performance impact of Microsoft Defender, but it will also reduce the level of protection that you have against malware.
Another thing that you can do to reduce the performance impact of Microsoft Defender is to schedule scans for when you are not using your computer. Scheduling scans will allow Microsoft Defender to scan your computer without impacting your work or play.