Windows 10: MsMpEng.exe consistently reading/writing/scanning to the HDD

In the current year my PC is a potato, was very good not too long ago.

At this time I am trying to run 7 Days to Die, with the Darkness Falls mod, and as 7 Days is poorly optimized ( and not at all for SLI ) my frame rate suffers, however, it is playable.

That is until MsMpEng.exe decides to yet again consistently scan/read/write what seems like 100's of MB's, and does so in bursts every 20 mins to a couple of hours. Why? It's not as if it's recently downloaded definitions. It this the result of the "Real Time Scan" portion? I would disable that part if I didn't need to be connected to Steam and by extension, the internet to use the game.


More importantly however...why the hell does it decide to do this while I am running an application that sometimes needs upwards of 9 GB of my 12 GB of memory? It reverts to a damned slideshow, and that's the last thing I need whilst battling a horde of 64 enemies, what's worse is it completely freezes 7 Days for minutes.


I would add another 12 GB of ram, unfortunately, I do not have the $100+ of disposable cash to throw at it.

So basically I need to "disable" certain functions from running whilst gaming. Win10 used to do that, as I recall, I'd get popups after shutting games down stating what was held back. I haven't seen that in months.

:)

 

Slow HDD read and write speeds

Hi,

Thank you for writing to Microsoft Community Forums.

We will require a few more information from you to help you further with the issue. Please reply with the following details:

• In which device are you facing this issue?
  
• Are you using an external HDD or internal HDD?
  
• Are you getting the read and write speed issue on any particular application?
  

However, you can Disk Defragment on your computer to optimize the drive. To run Disk Defragment please follow the steps from the article

Defragment your Windows 10 PC.

Alternatively, you can check for the read and write speed of the HDD in task manager. Please follow the steps mentioned below to check the read and write speed of the hard drive:

1. Press Ctrl + Shift + Esc key together on the keyboard.
   
2. Click on Performance tab.
   
3. Click on Disk 0.
   
4. You will find the Read speed and
   Write speed at the bottom of the window.
   

Hope it helps.

Please reply with the status of the issue, we will be glad to help you further.

Nikhar Khare

Microsoft Community - Moderator

 

Slow HDD read and write speeds

Has MS solved the slow HDD read and write problems on Win 10? Is there an official fix for this?

 

Insanely slow HDD random read/write


I'm playing tech support for a relative, and her (ASUS K53E) laptop SATA HDD has insanely slow random read/write. Sequential r/w is around 74 MB/s, which seems fine, but random is around 1 MB/s. Hard disk health is fine according to S.M.A.R.T. Win10 1709 Pro x64. Pentium B960; HM65 Express chipset using the Microsoft Standard SATA AHCI Controller driver. Windows update doesn't have any driver updates; Intel driver tool returns nothing; Asus website has no Windows 10 drivers. I'm at a loss, any suggestions?