I would not pay for Malewarebytes period, have been using the Free version on all OS's and it's great! and no it never turns off Defender or anything else.

I just went to turn on Windows Defender. When I try click on turn on real time protection nothing happens. Years ago I must have made a mistake downloading the free version of Malwarebytes and ended up having to paying $40. It updates and scans every morning, so I consider that $40 well spent. I have never had any malware problems since then. I use my printer every day and want it to be turned on.

I can set Malewarebytes for a daily scan as well, but I don't and I have n/p's either, because I also have a good virus protection beside defender and at DL is shows Free on one column and the pay for on the other. My defender stays off, I don't trust it as well as Avast or AVG free of course.

"new Win 10 desktop" Often, most new PC's come with a 3rd party Anti-Virus program installed. If you right click your windows programs icon on the left of the taskbar - click on the top item, Program & Features and look for an installed Anti-Virus program. I suspect there is one and its uninstallation should automatically enable windows defender after a restart.

Your printer probably needs its 'model' printer software installed.

Maybe you hear the cpu or one of the case fans whirring. SSD's don't normally need a fan nor make any noise at all. A new hard drive of the spinner variety seems odd to me that a new one could be heard spinning up unless you are in a quite quiet area.

The SSD Drive has NO Mechanical Parts and will make no noise. I'd bet the noise you're hearing is the CPU Fan. If this is a New Computer I'd take it back and exchange it for a different computer. I have an SSD Drive and a Standard Hard Drive in my Laptop and it's totally silent!

Yes, there are others having trouble with Malwarebytes 3.0 and Windows Defender for Win 10. You could always go to the Malwarebytes Website for help. I'm not much help here. I'm on the Free Version: Malwarebytes Anti-Malware 2.2.1.1043, so far no problems, but I'm running Norton's Security Suite.

As for your printer; I'm betting that Windows is just doing a Quick Scan at Boot-up of your Devices hooked up to the computer and it briefly is turning on the printer. Don't think it's anything to worry about. The printer should go back into Sleep Mode!

WIndows Defender is a poorly regarded program and Malwarebyes (it's not MALEware) is also not needed as a regular matter for anyone who uses a capable security antivirus/security program.

The experts advise using one and only one program because they can interfere with one another and affect both safety and PC performance.

I've heard that around running Two Anti-Virus programs on one computer, but I've never heard that about Malwarebytes and an Anti-Virus. I'm not saying that it's not true, I'll have to research that a little more. This article shows how to run Malwarebytes along with an Anti-Virus. How to Run Malwarebytes Alongside Another Anti-Virus

I've always had Malwarebytes on my computers but not set to run automatically. I run Malwarebytes occasionally but not on a regular basis. I feel for the most part that Norton's is doing a wonderful job of keeping my computer safe, they do scan for Malware. Malwarebytes, for me, is just the extra protection I may need down the road! I do keep Malwarebytes Updated Weekly, whereas Norton's is Updated Daily.

Thanks to all who have responded. I now have Malwarebytes and Windows Defender running. That combo has fully protected me for the past five years. I am still curious about the whirring sound. It is not continuous but comes and goes according to what the machine is doing. I am going to call Vision's tech support to see what they say (it is a Vision PC).

Malwarebytes has never interfered with any anti virus software, that I have heard about on any of the tech or windows forums that I belong to. And it is different from anti virus software in protection or scans.

Might be hearing your DVD drive come on. DVD drive here on Win10 powers off completely when not used in a while, I guess to save on energy a tad. So anything that for some reason wakes it, maybe maintenance, sometimes will whirr it for one or two seconds.

aputernut,

Check the Malwarebytes Forum: Malwarebytes Turning Off Windows Defender

My W Defender was turned off automatically when I DL Avast anti virus which I knew would happen but not turned off by Malwarebytes and I do not need to read what I already knew which is Malewarebytes does not do this but rather another AVI does.I also have and use ASC so no need for Defender which I said before I do not trust completely, I do not think it scans incoming mail for instance.

Email scanning might have been useful years ago, but not anymore. One of the
biggest problems caused by email virus scanners is corrupted Outlook Express DBX (data)
files.

Next

Are we talking about free Malwarebytes or the paid version 3.0 ? The paid version can be used as a Anti virus replacement so it's possible Malwarebytes could turn off Defender in some situations, In that case exclusions can be made in the Malwarebytes interface as well as Defender.

I have the paid version of Malwarebytes. As its "real time protection" is turned on, Windows Defender "real time protection is turned off. The rest of Windows Defender appears to be turned on.

Go to Settings and select Update & security > Windows Defender. Under Processes: Exclusions, select Add an exclusion. I have 6 Exclusions below:

C:\Program Files (x86)\Malwarebytes Anti-Malware\mbam.exe
C:\Program Files (x86)\Malwarebytes Anti-Malware\mbamdor.exe
C:\Program Files (x86)\Malwarebytes Anti-Malware\mbampt.exe
C:\Program Files (x86)\Malwarebytes Anti-Malware\mbamservice.exe
C:\Program Files (x86)\Malwarebytes Anti-Malware\mbamscheduler.exe
C:\Windows\System32\drivers\mbam.sys

You might have to do that if you want Defender running. You can copy and paste the lines above into the Exclusions box on defender. You may have to do one line at a time.

In most cases Malwarebytes will run along with Defender without doing this, but there are some situations where it may be required to do it.

Doing this tells Defender to ignore Malwarebytes.

Thanks for Posting that Zep516. The Link I supplied basically comes up with the same advice. Those Exclusions should take care of the problem. There's lots of Talk on this matter if it's just Googled!