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Windows 10 includes Windows Defender, Microsoft's built-in antivirus. The Antimalware Service Executable process is Windows Defender's background process. This program is also known as MsMpEng.exe and is part of the Windows operating system.
It's responsible for checking files for malware when you access them, performing background system scans to check for dangerous software, installing antivirus definition updates, and anything else a security application like Windows Defender needs to do. That's why it's very likely to take up huge disk, memory, RAM and even network bandwidth, draining computer resources, especially after getting a Windows 10 update.
How to Change Maximum Disk Space Used by System Protection and System Images in Windows 7
By default, Windows 7 will allocate up to 10% of your total C: drive/partition size to be used by system protection to store system restore points in this allocated disk space. This allocated space will no longer be available as free space on the drive/partition.
This same setting also determines the maximum disk space that can be used to store system images on a drive letter. The size of a system image can be quite large since it will include all system drives in the image by default plus any drives you have included. If you want to keep multiple system images, be sure to increase the max size accordingly. This tutorial will show you how to manage and change the maximum disk space you want to be used for system protection restore points and system images in Windows 7.
Restore points are saved until the disk space System Restore reserves is filled up. As new restore points are created, old ones are deleted.
It really depends on how many restore points you would like to have stored on your computer for what you should set the MAX storage size to be. The size of each restore point will vary from system to system due to what you may have installed. As a rough guidline, I would give about 1.3GB of space for each restore point that you would like to keep. You can adjust the MAX size as needed if you are not getting the amount of restore points you would like though.
As space fills up, older restore points and system images will be deleted to make room for new ones.
Through System Protection Properties Page
1. Open the Control Panel (icons view).A) Click on the System icon.OR
Manually Using an Elevated Command Prompt
1. To See the Current Allocated System Restore SizeA) Open an elevated command prompt.B) If prompted by UAC, click on Yes. C) In the elevated command prompt, type in the command below and press Enter. (see screenshots below) NOTE:This will give your the details on the Used, Allocated, and Maximum spaces of Shadow Copies for the available disks that you selected to have system restore turned on for. The left screenshot is for just one drive selected, and the right screenshot is for two drives (C & D ) selected. vssadmin list shadowstorage
NOTE:If you turn System Restore off for a selected drive, the original default values will be set back and the restore points will be deleted.A) In the elevated command prompt window, type the command below for the drive letter and max size you want. WARNING:If you change the MAX size to a smaller size than the current Used size shown in step 1 above, then the older restore points will be deleted to adjust to the new size. Nothing will happen to the restore points if you make the MAX size larger than the current Used size shown in step 1 above.*For a listed C: OR * For a listed D: drive, you would type the command below and press Enter. OR See the screenshots below step 1 above under the Shadow Copy Storage association line for each drive listed.
B) You will get a Successfully resized the shadow copy storage association message. C) If not, repeat step 2 checking for any mistakes that may have been made. D) If yes, then check with step 1 above to confirm the change for the selected drive. 3. Close the elevated command prompt when done. NOTE: That's it, Shawn
Related Tutorials
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Antimalware Service Executable High CPU/Disk UsageHow Can I Fix Antimalware Service Executable High CPU/Disk Usage
If the Antimalware Sevice Executable process takes up high CPU on your Windows 10, don't worry. We have easy solutions for you to deal with it.
Solution 1. Change Windows Defender's Scheduling Options
Change Windows Defender's schedule is an effective way because the error is mainly caused by real-time protection feature. Follow the details below and fix 'antimalware service executable high disk usage' issue.
With the steps above, your error should be fixed now.
If unfortunately, it doesn't help you, make sure to try the second solution below. Solution 2. Add Antimalware Service Executable to Windows Defender's Exclusion List
1. Press the Windows logo key + I at the same time to open the Settings window.
2. Click Update & security.
3. Click Windows Defender. Then click Add an exclusion in Exclusions.
4. Click Exclude a .exe, .com or .scr process
5. Type MsMpEng.exe. Then click OK.
Solution 3. Disable Windows Defender
Note: If you do not see a registry entry named DisableAntiSpyware, right-click in the main Registry Editor pane and select New > DWORD (32 bit) Value.
Name this new registry entry DisableAntiSpyware. Double click it and set its value data to 1.
Extra Help: Check Partition and Clear up Junk Files
For those who got this problem very recently, performing a disk check should be taken into account.
In order to perfectly solve this case, we need a free tool to help us - EaseUS free partition tool. With EaseUS free partition manager, it’s not something hard to resize partitions on hard disks anymore. You can do it by yourself and make the best use of disk space in clicks. Meanwhile, it keeps your Windows computer running at its best by speeding up the computer. This professional tool can help get this work done, and here is the detail:
Step 1: Launch EaseUS Partition Master. Select 'Tools' and click 'System Optimization'.
Step 2: Click 'Junk File Cleanup'. Then you can click 'Analyze' to let EaseUS Partition Master find junk files on your PC.
Step 3: You can check and choose junk files and click Clean up. All of the selected junk files will be cleaned and deleted from your PC. Click 'Yes' to clean up junk files.
May 2, 2018 - In the upper righthand corner of my desktop, the Google drive icon has an exclamation point and when I click it, it says 'Error - click here to sign. Google drive not syncing with pc games. Basic troubleshooting. Here are some general problems you might see: Files not syncing between your computer and My Drive. Backup and Sync stuck on.
If you still have the problem with your disk/CPU usage issue, you can refer to fix 100% disk usage in task manager to know more solutions.
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The Disk Protection feature allows you to reset your MultiPoint Services system to a specified state each time you restart the system. Using Disk Protection, users can temporarily make changes to the MultiPoint Services system, and then those changes are discarded when the server is restarted. Examples of changes that will be discarded when the server is restarted include personalizing a user’s profile, saving files, changing settings, or installing applications.
Enable Disk Protection
After the system restarts, any changes made to the system, including new applications that are installed, will be discarded on each subsequent restart.
Disable Disk Protection
After the system restarts, any changes made to the system, including applications that are installed on the server, are permanent and will not be discarded the next time the system is restarted.
MsMpEng.exe is the core process of Windows Defender. Windows Defender comes pre-installed on Windows 10. Sometimes MsMpEng.exe starts utilizing 100% of CPU and Disk. While this is happening, the system becomes slow or even stops responding.
MsMpEng.exe issue of taking 100% disk and CPU usage normally occurs when Windows Defender is scanning the system for malware. This should not be the case usually but if it’s being done often, this means that Windows Defender is stuck on a few files for checking malware.
In that case, it should be restricted/disabled to bring back to its normal state. In this article, we will share three different ways to fix MxMpEng.exe causing high disk and CPU usage issue. Guns n angel hacked arcade games.
Disable Windows Defender using Group Policy
Disabling of Windows Defender can solve your issue related to high CPU usage. But after disabling it, install another good Antivirus software so your system’s protection will not suffer. To disable Defender, follow below steps.
But again don’t forget to install another good security software for your system’s protection.
Prevent scanning of a specific folder
The high CPU can also occur if Windows Defender is scanning its own directory. So add the MsMpEng.exe file in the list of “Excluded files and locations”. This will cut the load on CPU as Defender won’t scan for its own directory. Apply below steps to do this.
CPU usage for MsMpEng.exe file will not be high now, as it only takes little extra resources on time of Defender’s scan. Otherwise, you will have usual load for every process.
Microsoft Windows System Protection 100% Disk
These steps can be followed for all the directories and folders on which Windows Defender gets stuck while scanning.
Give MsMpEng.exe least affinity
Set MsMpEng.exe file to use the specific processor of the system to avoid high CPU usage by this file. But it will cut the scan speed of Windows defender than usual. But slow scan speed is better than having high CPU usage. Apply below steps to set the affinity in limited mode.
Hopefully, these solutions will work for you. if your MsMpEng.exe file is using high CPU resources then do not sit idly, fix it by using above solutions and cut extra load over CPU and disk.
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I have recently upgraded my laptop from Windows 7 to Windows 8, and now 8.1. After the upgrade I observed a very high disk usage periodically (almost every day), caused by some weird TMP0000000XXXXXXXXX.. (TMP000000000 followed by a bunch of string, one example is: TMP00000003673F37CC1586E0CB) files without extension in %WinDir%Temp folder as seen from Resource Monitor, and there are about 10 of them.
I did some investigations and eventually found out that Windows Defender is actually the cause of this problem. I'm very sure about this. WD just anyhow uses up my harddisk resource even when there is no scanning activity. My laptop becomes incredibly slow, and I know it would decrease the lifespan of my HDD. When I disable it, all those weird files suddenly disappeared, and the disk usage just comes down to around 0-5% (normal percentage).
Is there any way I can stop Windows Defender from slowing down my laptop without changing the antivirus software? I know Windows Defender isn't bad, and I want to keep using it. Thanks.
PS. Actually I wanted to show you guys a picture of what the files look like, in case you don't get it, but my reputation is not enough.
brillydevbrillydev
4 Answers
Following a look around it seems you are likely suffering from a couple problems. Either Defender is caught in a loop, which will keep it running a scan constantly taking up resources on your system. If you wish you can run this offline by creating a live CD/USB. You can find a copy of Windows Defender Offline from Microsoft
The other option to this would be reset it to default, but according to a Microsoft answer here, you would require a registry edit to do this. I suggest you try a complete removal of your antivirus and run a clean install. This should solve either of the above problems. If not it might be a system problem which we can asses.
Matthew WilliamsMatthew Williams
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Windows key + X and select Command Prompt (Admin) and type sfc /scannow and return. If it repairs system files, run it again until no errors.
In case Windows Defender is caught in a loop, consider running it offline per the following tutorial.
If this does not solve your problem, restore the default settings of Windows Defender Services only per the following tutorial
If the problem still persists, you may have to Refresh Win 8.
scanning itselft solved my issue
Arun Prasad E SArun Prasad E S
I found that doing a definition update from windows defencer fixed the issue, as per this post on itsupportforum.net
If it fails. simply try again.
Journeyman Geek♦
Microsoft System Protection Background Tasks High Disk Usage
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Microsoft Windows System Protection High Disk Windows 7
TanktopTanktop
I was also experiencing this issue and found the cause to be something totally unexpected. Although my iObit Advanced System Care was showed only 1-3% usage when no programs were open, Windows Task Manager showed 100%, and my computer was operating very slowly. This was after a definition update, so YES that was a factor, but the Windows Defender reported the update as successful, yet Task Manager still reported 100% usage even when Windows Defender wasn't actively scanning. When contemplating what might be causing the disparity, I remembered that I'd disconnected two external hard drives the previous day to troubleshoot another issue, and hadn't reconnected them. As soon as I re-connected the external drives, the disc usage dropped back down to normal. I can only surmise that Windows Defender was spinning its wheels trying to scan the discs it was accustomed to finding online.
user569696user569696
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