Memory Utilization is Always High

Hi All

I am facing issue since long time that Memory utilization of the System is always more than 60% even if i don't use any APP

All Background & Windows processor keeps on running , Tried below things without luck

1) Visited 2 DELL service center as per them NO HW Issue found

2) Formatted the Laptop 

3) Upgraded the Windows 10 to latest Version of 21H2

4) Run SupportAssist of DELL but No issue found.

Please anyone can help me in the case?