Are you sure you want it to be running? There are a large number of posts throughout the Internet about dcfwinservice using high disk and CPU usage. 

Clean Boot the System

If you add Dell Foundation Services to your system's startup items, it may show up in your task manager and consume the CPU. Therefore, a clean boot of the system may solve the problem.

Here are the detailed steps:

Step 1: Type system configuration in the Windows Search box in the taskbar, and select the best-matched result.

Step 2: Switch to the Services tab, select the Hide all Microsoft Services box, and click the Disable all button.

Step 3: Now, go to the Startup tab, then click Open Task Manager.

Step 4: In the Task Manager panel, find the DCFWinService or any other Dell-related service from the list.

Step 5: Right click on the service and select the Disable option.

Step 6: When you disable all the startup of unnecessary applications, close the Task Manager window, and then click on Apply > OK.

Step 7: Restart your PC and check if the high CPU usage by DCFWinService is normalized.