100% RAM used when PC is connected to domain of server 2022 21H2

Question

100% RAM used when PC is connected to domain of server 2022 21H2

Bernard Coudron 1

Hello,

One PC experiences a very stange problem since installation of a new DC Windows 2022 21H2.

Not connected to the domain, the PC works fine.
Connected to the previous DC (W2016), the PC was working fine.

But, with the new DC, RAM use raise to 100% in a few minutes.

Upgrade to 16GB RAM : same problem.
Full reinstall of Windows 10 (with latest drivers and Windows updates) : same problem.
Full reinstall of Windows 11 (with latest drivers and Windows updates) : same problem.

This PC (the newest) is the only experiencing this problem.

Do you have any idea of the root cause ?

Thanks in advance for your help.

Michael Taylor 60,341 Reputation points

2024-02-20T17:01:31.6833333+00:00

Without any other information it is hard to say. You're going to need to use a memory monitoring tool like Task Manager, Process Explorer, etc to look at the processes that are running and determine which process(es) is eating up the memory. That will help identify where you need to focus. It could be a bad driver or some extension that is installed. Determining the process is the starting point of this. It sounds like a memory leak to me.
Bernard Coudron 1 Reputation point

2024-02-20T17:04:13.1+00:00

I already checked, the process eating all the RAM is : System !

Even without programme running, 100% RAM is used after a few minutes.
But only when connected to the domain.
Michael Taylor 60,341 Reputation points

2024-02-20T17:13:45.4133333+00:00

If it is the 'System' process then it is most likely a driver memory leak. To narrow it down you're going to have to look at the drivers. In this post it mentions downloading the WDK tools. As part of that discussion it talks about why the process may use up more memory. Someone in that thread mentions disable superfetch to see if it resolves the issue.

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Michael Taylor 60,341 Reputation points

2024-02-20T17:01:31.6833333+00:00

Without any other information it is hard to say. You're going to need to use a memory monitoring tool like Task Manager, Process Explorer, etc to look at the processes that are running and determine which process(es) is eating up the memory. That will help identify where you need to focus. It could be a bad driver or some extension that is installed. Determining the process is the starting point of this. It sounds like a memory leak to me.
Bernard Coudron 1 Reputation point

2024-02-20T17:04:13.1+00:00

I already checked, the process eating all the RAM is : System !

Even without programme running, 100% RAM is used after a few minutes.
But only when connected to the domain.
Michael Taylor 60,341 Reputation points

2024-02-20T17:13:45.4133333+00:00

If it is the 'System' process then it is most likely a driver memory leak. To narrow it down you're going to have to look at the drivers. In this post it mentions downloading the WDK tools. As part of that discussion it talks about why the process may use up more memory. Someone in that thread mentions disable superfetch to see if it resolves the issue.

Answer 1

Wesley Li 11,285

Hello, According to your discription, the system process seems to run 100% RAM. You can first try disable Sysmain which is also called as superfetch. There are some different ways to disable it:

Press Windows key + R, type ‘services.msc’ and press Enter. When you’re prompted by the UAC (User Account Control), click Yes to grant admin access.
Once you’re inside the Services screen, locate the service named Sysmain, right-click on it and choose Properties.
Inside the Properties screen of SysMain, click on the General tab, then set the Startup type to Disabled by using the associated drop-down menu. Then, click on Stop if the service is already running.
Click Apply to save the changes, then close the Services screen and restart your computer. Once the next startup is complete, you should not experience the same kind of resource usage by System. Best regards,

Bernard Coudron 1 Reputation point

2024-02-29T06:12:41.4266667+00:00

Hi,
Thanks for the answer.

I will test this solution as soon as I go to the customer's office. Now, I'm testing the PC with different domains (and DC).
Till now, there is no problem, with 3 different DC.
Only the connexion to the DC of this specific customer initiates the problem. How is it possible that one specific DC is the cause of the problem (with all users accounts) ?

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100% RAM used when PC is connected to domain of server 2022 21H2

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