High RAM usage when PC is idle - Windows 11

Hi Devesh. I'm Greg, 10 years awarded Windows MVP, here to help you.

1) Try these fixes for high RAM usage in Windows 11:

https://allthings.how/how-to-fix-windows-11-hig...

https://www.anyrecover.com/windows-tips/high-me...

https://beebom.com/how-fix-memory-leak-bad-ram-...

https://www.reddit.com/r/Windows11/comments/ut3...

https://www.kiwigeeker.com/fix/high-memory-usag...

https://www.youtube.com/watch?v=6laLoaSMVk8

There is a known Memory leak bug that is fixed here:
https://www.windowslatest.com/2021/10/07/window...

2) Update your drivers from the PC maker's Support Downloads webpage for your exact model. While there check for the latest Chipset, BIOS, Sound, Network, USB3, Bluetooth and all other drivers to compare with the version/date installled for that device in Device Manager reached by right clicking the Start Menu.

3) Expedite install of all Windows Updates (including Optional) in Settings > Update & Security > Windows Update > Check for Updates, watching for needed restarts, then go back to check again until no more are offered.

Then go into Microsoft Store app > My Library > Get Updates and expedite all Store app Updates, too, until no more are offered.

4) Run a full Windows 11 Disk Check: https://allthings.how/how-to-run-chkdsk-in-wind.... This is to check the disk and file system condition which can factor into any case, and sometimes later proves to be the cause if it's left out.

5) Establish a Clean Boot to turn off Startup Freeloaders that can conflict and cause issues:
https://www.makeuseof.com/clean-boot-windows-11/

6) Download, install and run a full scan with free Malwarebyes from https://www.malwarebytes.com/mwb-download/ after enabling Root Kit scan in Scan Settings. Clean Up anything it finds and then run again. Turn off Real Time trial in Control panel to keep as on-demand scanner.

7) Run System File Checker/DISM in WIndows 11 to find and fix any broken System files:
https://www.elevenforum.com/t/use-system-file-c...

8) If that doesn't fix it then you can do a Windows 11 Repair Upgrade which reinstalls Windows while saving your files and apps in place, brings it up to the latest version by the most stable method, takes about an hour and resolves most problems: https://www.elevenforum.com/t/repair-install-wi...

9) Test the memory using WIndows Memory Diagnostics: https://www.techrepublic.com/article/how-to-det...

If problems are found then test the RAM overnight to stress it with the best bootable test memtest86, following this guide to test both sticks and slots:
https://www.tomshardware.com/how-to/how-to-test...

Run Crucial System Scanner to check the RAM is precisely spec'd and configured, and what upgrade options exist for first quality discount RAM: https://www.crucial.com/usa/en/systemscanner?cm...

Feel free to ask back any questions. Based on the results you post back I may have other suggestions if necessary.

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Thank you for your response! I will get back to you after I complete all the steps which you have provided, within a few days I assure you.

I'm glad to help, Devesh. Keep me posted on your progress as I will be here to help until the case is resolved.