In Windows 10, opening the task manager and looking at the complete list of processes (right click on the taskbar, go to Task Manager and then press on More details) you will more notice a process called " Host Experience Shell Windows " (or " Windows Shell Experience Host ") which occupies a considerable amount of memory and also, in some moments, of CPU. This process is part of the Windows system and is responsible for managing the applications, those pre-installed or downloaded from the Microsoft store.
In addition, it also manages various graphical elements of the interface, such as the transparency of the Start menu and the taskbar, the clock, the calendar and other things.
It also controls some elements of the desktop background when, for example, the presentation mode is used, that is, when you set the background that changes automatically.
Sometimes it can happen that this process, in Windows 10, goes to take up too much CPU and memory and you might think you can terminate it or disable it.
If you are having problems with this process it is important to know that there is no way to disable it because it is part of Windows.
To solve the first thing to do is to check that the system is up to date.
This is because Microsoft may have corrected the problem with a patch to download via Windows Update on Windows 10.
If even after the update the problem is not resolved, the next common steps could be to perform the typical common operations to resolve errors in Windows 10, but first it is worth turning off the background with presentation if it is active.
To check for this potential cause, open Settings -> Personalization -> Background and use the solid color option.
If this solves the problem and you still want a background that always changes, it is better to use a program to rotate the background images.
Another possible cause of excessive CPU and memory usage by the Windows Host Experience Shell process is the option that automatically changes the color of windows and menus based on the background.
To disable this option, go to Settings -> Personalization -> Colors and remove the cross on " automatically select a main color from the background ".
If nothing resolves after a reboot, then re-enable the option and look further.
Still in the same menu of Personalization> colors, if the problem persists, try disabling the option " show color in Start, taskbar and notification center ".
As mentioned above, it is not possible to deactivate the "Windows Shell Experience Host" process, however you can still end it in the Task Manager, by right clicking on it and pressing End activity .
Windows will restart the process automatically after a few seconds.
What is certain is that this process is not a virus, although it cannot be excluded that malware presents itself with this name.
It is therefore worth doing a scan with antivirus or, better, with more accurate tools like Malwarebytes Antimalware.
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