Windows 10: why decrease cpu usage if app minimized ?

Hello friendsI have a problem with my new system.When I render with the 3ds Max program, if I open another program like chrome or photoshop, the CPU performance decreases drastically. 100% cpu usage --> 35%I also changed the task manager priority settings, but it had no effectAny program that opens in full screen practically disables the main program.even This Pc

:)

 

How can I minimize CPU usage?

Hey can someone tell me how to minimize cpu usage?

 

Windows PowerShell Process Causing High CPU usage on windows 10

Anyway, I suggest you uninstall temporarly Symantec and I'm sure you will see CPU usage decrease

 

HP EliteBook 2530p forced shutdown automatically due to high CPU Usage

High CPU usage -- even 100% CPU usage -- shouldn't in itself cause a shutdown. However, if the computer is running at 100% CPU usage for any significant length of time, particularly if the vents are blocked, either physically or by dust accumulation, the
CPU is likely to overheat, which will cause a shutdown.

1. Open Task Manager, select the Processes tab, and click the button to "Show processes from all users."
2. Click "CPU" in the header row once or twice to sort the entries in the order of decreasing CPU usage.
3. Create the situation where you have 100% CPU usage
4. List the "Image Name" of the top 5 items in the list together with the indicated CPU usage for each.
5. As soon as you have noted the values in Step 4, right-click on the top item and select "End Process."; repeat until CPU usage drops to a more reasonable value.

You should also download one of the following free utilities and monitor the temperature of your CPU and system:

Core Temp
https://www.alcpu.com/CoreTemp/

HW Monitor
https://www.cpuid.com/softwares/hwmonitor.html

SpeedFan
http://www.almico.com/speedfan.php

HWInfo
https://www.hwinfo.com/download/