Hi,
If possible, access the task manager, take a screenshot, and post it here.
Regarding the Workloads Session Host, if possible, access the details tab in the task manager, right-click, open file location, and see where the directory points to.
I recommend you do an analysis with Microsoft's MSRT and Malwarebytes /Adwcleaner.
MSRT: https://www.microsoft.com/en-us/download/details.aspx?id=9905
After the analysis, open the command prompt (admin) and run the commands: sfc /scannow and dism /online /cleanup-image /restorehealth, wait for the process to finish and restart the computer.
Then perform a clean boot and if you want to uninstall applications that you do not use.
Also, check Task Scheduler in the Library tab and disable all options.
Click the arrow to see what might happen.
You can also install PC Manager, which comes free with Windows, by searching in the Microsoft Store (if it's available where you are).
https://pcmanager.microsoft.com/en-us
Thank