SysMain issue with 1 specific program

Question

Dear Sirs,

Recently for about a month or two I have had an issue with SysMain. I never knew of it before even though it was probably there but now have seen that something has changed.

I have had a program for about half a year that initially ran fine no problems. In the past month or two I noticed every time I started this program, I had lag and had to wait for quite a while before it would run normally.

Finally I looked in Task Manager during one of the lag moments and discovered the lags were caused by SysMain running using up a lot of stuff including Disk.

This program was not having this problem until the past 1-2 months and no other program ever has this issue. If SysMain was ever running, there were no clashes.

I tried contacting the company that makes the program on October 27th but not received a response yet, sometimes it takes them a while.

I tried once disabling SysMain, that did fix the problem but while I have read sites saying to do this, I have also read ones saying it is a bad idea. I renabled it then discovered that in RegEdit there was supposed to be a setting changeable that should have only allowed SysMain to run at Startup / Booting. I changed that but it still keeps running whenever I start this one particular program for the day, every day without fail causing lag.

I do not understand what changed that caused this and would appreciate any insight on what is happening and how to fix it.

Thank you.

Answer 1

Dear Rogue1618,

I'm glad to see you in Microsoft Community.

I fully understand your current feelings, the current problem is causing you distress and your situation must be difficult. To solve our problem, I would like to ask the following questions.

• May I ask what version of your system you have? (Press Win + R -> type winver at the same time to see your version. To give you a clear suggestion, please send me a screenshot)
• Have you updated your system to the latest version?

For an introduction to the SysMain service, I believe this article will help you, click here to view it.

Because the SysMain service itself is used to increase memory, but after opening it becomes laggy instead, I think this is the effect of the service itself. To solve our problem, let's perform the following steps.

1. Virtual Memory Settings

Automatic virtual memory management is an aid to the SysMain service to turn it on when needed and off when not in use.

• Right-click the "This PC" icon -> click "Properties" -> Advanced System Settings -> "Computer Properties" window, select the "Advanced" tab, then click the "Settings" option in the "Performance" group
• In the "Performance Options" screen, select the "Advanced" tab, then click the "Change" option in the "Virtual Memory" group -> "Virtual Memory" window, check "Automatically manage paging size for all drives", OK -> restart your computer

2. Memory Diagnostics

Memory Diagnostics is to confirm if there are any memory problems

• Type "Memory Diagnostics" in the Start search bar, run Windwos Memory Diagnostics and select "Restart now and check for problems".

Also, my own advice to you is that if you turn off the SysMain service for a period of time and find that using your computer has no effect, you can turn it off.

Thank you for working closely with me on this issue and for your patience in reading, I look forward to hearing from you.

Best regards,

Zoee | Microsoft Community Support Specialist