Since Windows Windows 10, version 20H2 updated Not enough memory

OS: Windows 10 64-Bit (Japanese)
Ram: 12.0 GB
Drivers/Software/Browser all up to date
Empty space on Hard Disk 378 GB

Since the latest Windows 10, version 2004 or say 20H2 updated there are a lot of problems I am facing but the worst one is when I run a software for image editing or PDF editing no matter small or large file I get not enough memory though my laptop has 12.0 GB RAM and 378 GB empty hard disk space. When I use software do not open a lot of tabs. This problem started when the Windows got updated automatically to Windows 2004.

I wonder if there is any solution?

Your help in this regard will be appreciated.
Thank you

Have you checked the Task Manager press the "Ctrl + Alt + Delete" key to open it.
You can use Resource Monitor to tell you exactly how much RAM is being used, what is using it, and allow you to sort the list of apps using it by several different categories.
To open up Resource Monitor just press Windows Key + R and then type resmon into the search box.

You can also use the attached batch script to configure Pagefile size to static 2 times installed memory this can help with out of memory error.

FreeBooter said:

Have you checked the Task Manager press the "Ctrl + Alt + Delete" key to open it.
You can use Resource Monitor to tell you exactly how much RAM is being used, what is using it, and allow you to sort the list of apps using it by several different categories.
To open up Resource Monitor just press Windows Key + R and then type resmon into the search box.

You can also use the attached batch script to configure Pagefile size to static 2 times installed memory this can help with out of memory error.

Hi, thank you very much for the reply. Attached batch script to configure how?

Thank you.

Ari94 said:

Hi, thank you very much for the reply. Attached batch script to configure how?

Thank you.

When you double click the batch script it configures the Pagefile.

Ari94 said:

Hi, thank you for the reply. I appreciate that very much. Regarding batch script, I wonder if it is safe. Hope you do not mind as I am not good at computer thing. My screen shot might give you some information though it is mostly in Japanese.
I did attach the screen shot file, but I can not see.

Its safe script you don't need to worry.

FreeBooter said:

Its safe script you don't need to worry.

Sorry for asking many questions. What exactly will do that script file?
This got attached screen shot.

Batch script sets the Pagefile as static size of twice the installed RAM size. I think your problem is the Pagefile size.

FreeBooter said:

Batch script sets the Pagefile as static size of twice the installed RAM size. I think your problem is the Pagefile size.

Hi, I appreciate your help. Ok I will try that script and let's see. Thanks

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FreeBooter said:

Batch script sets the Pagefile as static size of twice the installed RAM size. I think your problem is the Pagefile size.

When I double clicked on the script file I got Warning message. Attached screen shot. Thanks

Microsoft Defender SmartScreen blocking the batch script.