Viruses have always been a very serious concern of windows users all over the world, which is why windows 10, the latest iteration of the software comes equipped with its very own in-built counter measure against malware and viruses. The Windows Defender is very effective at defending your system from all manner of threats but it can be a little too paranoid and take up too much of your processing power while scanning files and your ongoing connection to keep you safe.
Because of the high usage of the Windows Defender antimalware service executable, about 70% of your CPU power could be reserved, leaving you with very little to work with. The antimalware service executable or the MsMpEng.exe, as it would show on your task manager is the background process of the Windows Defender and since no one told us about what it is, many users have seen this on their task manager and freaked out about how there might be a virus on their systems.
There’s no shame in admitting that you thought of the antimalware service executable as a virus after seeing its outrageously high amount of CPU usage. You can rest assured that the antimalware service executable is the polar opposite of a harmful virus, since it’s there to fight against viruses and threats in the first place. However, the high CPU usage is indeed a problem and needs to be taken care of.
The reason why it’s taking up so much of your power is because it’s constantly scanning everything on your device and if you can put a stop to that, you’re problem is solved and your system is still safe. All you need to do is to schedule your scans so antimalware service executable isn’t running all the time in the background.