MicroSoftOut.exe

Hello KM, welcome to the Microsoft community, I'll be happy to help you today;

I believe the MicroSoftOut.exe process is Outlook related;

Initially I recommend that you do the pending updates on Windows Update;

Press Windows key + i and go to Update and Security;
Click Check for updates and do ALL pending updates;

Update Microsoft Store apps;

Open the store and click on Library;
Click on Get updates and wait for all apps to be updated;

run a disk cleanup;

Press Windows key + R and type: cleanmgr press Enter;
Click on clean system files and wait for the files to load;
Select all files and click ok to delete them;

Perform a clean boot;

Press together the keys: Ctrl + Shift + Esc to access the task manager;
Click on start and disable all programs that start with Windows;

Restart the PC and check if the MicroSoftOut.exe process is still CPU intensive;

Hope it helps, see you soon!