windows 10 slow down because of high usage of ram

Close Unnecessary Running Programs/Applications. Disable Startup Programs. Defragment Hard Drive & Adjust Best Performance.

Here are a few effective ways to stop high RAM usage in Windows 10:

1. Close unused background programs.
2. Disable startup programs.
3. Uninstall programs you no longer use.
4. Check your computer for malware.
5. Increase virtual memory paging file size.
6. Change NDU value in the registry.
7. Disable the SysMain/Superfetch task in the service menu.
8. Disable animations in the Windows 10 interface.
9. Reduce the number of tabs open in your browser.
10. Upgrade your RAM.
11. Reinstall Windows 10.