Configuring RDP (Remote Desktop Access)

Access via RDP allows to connect to your Windows desktop from anywhere in the world.
ATTENTION! Access can be granted not only for you, but for any person. It's a bad idea to use standard user names and passwords. For example, Administrator\qwerty.

First, you need to activate connection through RDP in your Windows.
Open Start - Control Panel - System and Security - Configuring Remote Access:

In the window select the option "Allow connections from computers with any version of the remote desktop". If you get an error that says anything about Windows Firewall, and the option is reset to "Do not allow connections," make sure that you have the Windows Firewall service running.

For verification open "Control Panel - System and Security - Administration - Services.
In the window find "Windows Firewall" service and make sure that it is running, otherwise run:

When you try to allow a remote connection, you can receive a notification that the computer is configured to go into sleep mode. Of course, if the computer is in sleep mode, then no access from outside will be received.

Now click the "Select users" button and make sure that you are allowed to connect through RDP. For example, "The administrator has got access already."

Remember that "desktop" versions of Windows operating systems have is a limit on the number of simultaneous connections, i.e., 2.

Windows Firewall can be enabled, but the protection is turned off. In this case, RDP should run without problems.
If it is enabled, you need to make sure that the firewall has permission to allow incoming connections to the required port.

Open "Control Panel - System and Security - Windows Firewall. Red shield - off, green - on:

Left menu contains an item "Additional parameters". If you click it, the firewall rule management interface opens.
Select rules for incoming connections, and then search for Remote Desktop Control. This rule allows incoming TCP connections to port 3389. Everything is OK! This rule was created automatically when you allowed remote connections:

If there is no rule, then you will either have to disable/enable remote connections again, or add the rule manually.
Select "Create rule" on the right (or the top menu "Action - create rule"). A dialog window will open where we select "for port" in the first step, select TCP protocol in the second step and enter port 3389, in the third step we select "Allow connections", in the fifth step we select all profiles, in the last step we give a convenient name and description.

The rule is created, and now it can be enabled, disabled, edited, deleted. Configuration of the computer is completed. Now you need to open the service control through the billing panel and add the port and protocol 3389/tcp to the list of allowed ports.

Remember that from now on your computer is accessible to the entire globe and you are protected only by your Windows user password:

To connect to your computer from another location, you need 2 things - your external IP address (it is in the billing, in the product description) and the RDP client. Windows: "Start - All Programs - Standard - Remote Desktop Connection". Or you can click "Start - Run" and enter the name of this program - "mstsc":

In the window enter your external IP address and click "connect", during the connection login and password to your computer will be requested:

There is a free utility Microsoft Remote Desktop for macos in the App store: