Summarize the following:
In order to turn on Remote Desktop, you must be on an account that has administrator privileges, and the account must have a password enabled. Click the multicolored Windows logo in the bottom-left corner of the screen. The Start menu will pop up. It's on the right side of the Start menu. Doing so opens the Control Panel window. Click the "View by:" drop-down box in the upper-right side of the Control Panel window, then click Large icons in the resulting drop-down menu. If you already see "Large icons" next to the "View by:" heading, skip this step. It's a heading near the bottom of the window. You may have to scroll down to see this option. This link is in the upper-left corner of the window. Doing so opens a new window. It's at the top of the new window.  If you don't see this option, first make sure you're on the right tab by clicking Remote at the top of the window. Skip this step if the box is already checked. It's in the middle of the pop-up window. Doing so allows you to connect to this computer from any computer that runs Remote Desktop (e.g., a Windows 10 computer) in the future. Skip this step if this box is already checked. If you want to allow Remote Desktop access to another user account on the target computer, do the following:  Click Select Users…. Click Add. Click Advanced…. Click Find Now. Scroll down in the pane at the bottom of the window and double-click the name of the user you want to add. Click OK on the top two open windows. It's at the bottom of the window. Doing so saves your settings and enables Remote Desktop on your target computer.

Summary:
Make sure that you meet the criteria for enabling Remote Desktop. Open Start . Click Control Panel. Set the "View by" option to "Large icons". Click System. Click Remote settings. Check the "Allow Remote Assistance connections to this computer" box. Check the "Allow connections from computers running any version of Remote Desktop" box. Add more users if necessary. Click OK.