ThisDLLfile is a crucial component in protecting the system, working silently in the background to provide real-time protection.

MpGear.dll not found error can happen when the related file gets deleted or corrupted for some unknown reason.

We highly recommend that youbackup filesthat matter or system to prevent any accidents.

execute sfc /scannow

Especially, MpGear.dll not found error can make Windows Defender fail to work.

you might prepare a backup to an external hard drive to prevent system crashes.

With the help of backup features, the whole experience gets optimized.

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Besides, MpGear.dll may get mistakenly deleted.

Step 1: TypeCommand Promptin Search and chooseRun as administrator.

click Disable all

Step 2: Typesfc /scannowand pressEnterto execute the SFC scan.

Step 1: ClickWin + Ito openSettingsand clickUpdate & Security > Windows Update.

Step 2: ClickCheck for updatesand then download and roll out the pending update.

Clean Boot VS. Safe Mode: What’s the Difference and When to Use

Step 1: OpenRunby pressingWin + Rand typemsconfigto enterSystem Configuration.

Step 2: In theServicestab, checkHide all Microsoft servicesand clickDisable all.

Step 3: In theStartuptab, clickOpen Task Managerand choose disable those enabled startup programs.

Step 4: Go back to theSystem Configurationwindow and click onApplyandOK.

Safe Mode: whats the difference, when and how to use?

After reading this post, you’re free to clearly know all the answers to these questions.

you better copy and paste the file from another PC that has the MpGear.dll file.

Here are specific steps.

Step 1: Use another functioning PC and locateC:\Program Files\Windows Defender Advanced Threat Protection\ClassificationinFile Explorer.

Step 2: Insert your USB machine and copy and paste the file into it.

Then connect the rig to your problematic computer and paste the file to the same place.

Now wrap up the window and cycle your system.

Step 1: TyperstruiinRunand pressEnterto open theSystem Restorewindow.

If you havent prepared a system restore point before, you may have a go at repair Windows installation.

This post has given you some methods and hope your concerns have been resolved.