Desktop Window Manager (dwm.exe) is using High RAM or High CPU - How to solve it ?

How to Fix Desktop Window Manager (dwm.exe) from using high RAM or High CPU
Methods to fix Desktop Window Manager (dwm.exe) from using high RAM or CPU:
Method#1:
Turn off Screen Saver: [If it still isn't solved, proceed to method #2]
Go to Settings>Personalisation>Lock Screen>Screen saver settings and keep screen saver as none
Method#2:
Turn off Background Apps: [If it still isn't solved, proceed to method #3]
Go to Settings>Privacy>Background Apps>Turn off  background apps which is not necessary for you
Method#3:
Update Windows and Drivers: [If it still isn't solved, proceed to method #4]
Update Windows and Graphics Drivers [Intel, NVIDIA, AMD]
Method#4: 
Perform Deployment Image Servicing and Management: [If it still isn't solved, proceed to method #5]
Windows 10 may have some missing operating system files. Use a command prompt to perform Deployment Image Servicing and Management (DISM) tasks for Windows 10 Health.
>Open cmd [Run as administrator] and perform the commands shown below
Dism /Online /Cleanup-Image /CheckHealth
Dism /Online /Cleanup-Image /ScanHealth
Dism /Online /Cleanup-Image /RestoreHealth
Method#5: 
Perform System File Check: [If it still isn't solved, proceed to method #6]
>Open cmd [Run as administrator] and perform a command shown below
SFC/SCANNOW
The System File Checker is a utility in Microsoft Windows that allows users to scan and restore corrupted Windows system files.
Method#6:
Windows Update diagnostic troubleshooting task:[If the problem is not solved, proceed to the final method]
Open cmd [Run as administrator] and perform the command shown below.
msdt.exe /id WindowsUpdateDiagnostic
Last Method #: [Final Solution]
Force to End dwm.exe Task
Finally, the last method is to end the desktop window manager in Task Manager.
Lastly, Restart your computer...
Note: I faced this issue on 30 Sep 2020
Finally solved, shown image

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