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Peeratat Mar 5, 2024 @ 1:05am
Windows Defender Full Scan 100% CPU Usage?
I just did a windows defender full system scan on a new PC with a fresh install of windows.

It's running on a pretty fast SSD with a 14900k. But then I noticed in the task manager the CPU usage is at 100 percent?

Is this normal?
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Dr.Shadowds 🐉 Mar 5, 2024 @ 1:28am 
Yes, if you want you can make your scan take longer but usage be lower, but I figure you want it to go fastest as possible to doing it scam rather than slowing it down.
#1
metamec Mar 5, 2024 @ 1:50am 
When a full system scan hits compressed files, yes, it's normal. Only when launched manually though. When a full system scan is scheduled, the cpu usage is throttled by default.

Lookup the Set-MpPreference command if you're interested in changing any of the defaults. For example:

Set-MpPreference -ThrottleForScheduledScanOnly $false

That will throttle the CPU for manual (full) scans too.
Last edited by metamec; Mar 5, 2024 @ 1:51am
#2
Peeratat Mar 6, 2024 @ 4:28am 
Okay. Got it. Thanks!
#3
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All Discussions > Steam Forums > Hardware and Operating Systems > Topic Details
Date Posted: Mar 5, 2024 @ 1:05am
Posts: 3
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