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Windows 7: Speed of MSE scan

21 Jan 2011   #1

Windows 7x64 Home Premium SP1
Speed of MSE scan

My McAfee subscription eventually ran out and I moved to MSE + Malwarebytes.
A full MSE scan takes quite a bit longer than the above two. Is it a case of comparing apples and oranges or is full MSE scan slow?
I'd appreciate any comments (SE ver 2.0.657.0 ~ latest).

My System SpecsSystem Spec
21 Jan 2011   #2

Windows 7 Ultimate x64 SP1

My scan with MSE seems to run slow too. took quite a bit of time, but I don't have any reference to Mcafee.
My System SpecsSystem Spec
21 Jan 2011   #3

Windows 7 Ultimate (SP1)

Also with no reference, but a full scan takes some time. A don't usually scan with MSE though, I save Malwarebytes for that
My System SpecsSystem Spec

22 Jan 2011   #4

Windows 7x64 Home Premium SP1

Interesting that Malwarebytes missed a Java applet that MSE got rid of (both uptodate). MSE went into a zip file to get it (maybe a false positive???).
My System SpecsSystem Spec
22 Jan 2011   #5

Windows 10 Pro x64

It is VERY SLOW but I just start it and forget it,it works in the background and does not interfere with what I am doing.
My System SpecsSystem Spec
22 Jan 2011   #6

Windows 7 x64 pro/ Windows 7 x86 Pro/ XP SP3 x86

Two interesting things I had read a few days ago. One, apparently MS claims that MSE doesnt skip files like other vendors to reduce scan time. That would mean that compressed files such as .rar and .cab files would be loaded into memory and scanned each time MSE is run, that would naturally slow down the process. So MSE may not be flagging files as safe and probably scans them every time.

The other is that full scans or at least scheduled scans are subject to 50% CPU throttling.

See these 2 threads.

Slow "full scan" on MSE 2.0.657.0

Full scan took over 10 hours!
My System SpecsSystem Spec
22 Jan 2011   #7

Windows 10 Pro

MSE is slow doing full scans. Basically been that way since first release as I posted here - Microsoft Security Essentials and Windows 7

I also noted this on the latest released version here - MSE 2 Final Released! and here - MSE 2 Final Released!

Bottom line MSE is ridiculously slow with "full" scans.
My System SpecsSystem Spec
22 Jan 2011   #8

Windows 7 Professional 64-bit SP1

I don't stick to the same security now (Vipre missed a few things ... so dumped it) ATM I'm using Zone Alarm Firewall, Avast AV and Malwarebytes free as just a scanner.
My System SpecsSystem Spec
22 Jan 2011   #9

Windows 7 Ultimate 64bit

I dont know what you all consider slow but I just finished a full scan of well over 1 million files in about 40 minutes. I kinda think that is rather quick compared to others I have used in the past.
My System SpecsSystem Spec
22 Jan 2011   #10

Microsoft Community Contributor Award Recipient


Another FWIW: I noticed that the first full scan of my machine took about 35 minutes. That was right after I uninstalled MSE 2.0 beta and installed the final 2.0 version. Shut the machine off and went to work. When I came home about 12 hours later I ran another full scan. That one took 11 minutes with the same number of files scanned. Same thing with the quick scan. First one took about 8 minutes and subsequent scans are in the 2 1/2 - 3 minute range.
My System SpecsSystem Spec

 Speed of MSE scan

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