You need to run a Desktop flow. 
Please select all correct statements about attended and unattended modes.

Answer options:

A.You cannot run an unattended flow on Windows Server as a server user with the locked session
B.You can watch unattended flow execution
C.You need to have an active user session to run an attended flow
D.You can run an unattended flow on Windows 10 device with a locked user session

Correct Answers: A and C 
Desktop flow automates processes on legacy, modern desktop, and web applications. You can create a Desktop flow using Power Automate Desktop or using alternative solutions involving Windows recorder and Selenium IDE. 
You can run desktop flow in two modes: attended and unattended.
Option A is correct because you cannot run an unattended flow on Windows Server as a server user with the locked session. You need to close the session for this user and rerun the flow. You can run unattended flows on a Windows server with locked sessions for other users, but not for the user whose credentials are used for flow execution.
Option C is correct because you need to have an active user session to run an attended flow. When flow runs on a device, try to avoid interacting with the device until the flow finishes.
Option B is incorrect because an unattended flow should run on a device with a locked display.
Option D is incorrect because an unattended flow on Windows 10 can only run when all users logged out and there are no active user sessions, even the locked one.
For more information about Power the Automate attended and unattended Desktop flows, please visit the below URL: 

https://docs.microsoft.com/en-us/power-automate/desktop-flows/run-pad-flow