Whether it is to help a friend in a technical difficulty or to send you a file by email stored locally, taking remote control of a PC under Windows 10 is as practical as it is simple to implement. Even neophytes can easily perform this operation. Here is how to control a Windows 10 PC remotely! 
Windows 10 makes it very easy to take control of a machine remotely. This requires using the Remote Desktop Connection tool. It is very useful if you are helping to troubleshoot the machine of a friend, relative or loved one. Indeed, not seeing what is happening on the screen can make assistance very complex and especially long. Not to mention the interlocutor who will open a window behind him when you ask him to do so on the computer. Don't joke, this happened to the author of these lines when he was on the hotline...
Another need: you have left files locally that you need to recover as soon as possible. Via the tool mentioned above, you can copy them from the remote machine to the one in front of you.
The prerequisites for controlling a PC remotely with Windows 10?
Before taking remote control of a PC under Windows 10, here are some essential prerequisites.
Allow remote control of a PC under Windows 10
How to Control a PC Remotely with Windows 10 Locally
The procedure we have just seen works on a local network, which in an apartment or a small business is of little interest. You might as well simply stand in front of the PC and help the person out.
Everything we have seen before prepares the use via the Internet. You just have to leave a door open to the Remote Desktop on the target PC and the router.
How to control a PC remotely with Windows 10 via the Internet
The procedure we have just seen works on a local network, which, in an apartment or a small company, is of little interest. You might as well simply stand in front of the PC and help the person out. Everything we have seen before prepares the use via the Internet. You just have to leave a door open to the Remote Desktop on the target PC and the router.
Allow remote control over the Internet on the target PC.
Allow remote control via the Internet on the target PC's router.
You are now sure that the PC will accept the remote connection, but you still have to go through the wall represented by your router. Be careful, if the target computer is behind a 4G router, the operation may not be possible.
Note that if your operator uses IP addresses whose ports are shared, this may complicate the operation.
Caution: Please note that this operation makes your network more vulnerable to attacks. We therefore advise you to close this port as soon as you no longer need it. Some tools like RDPGuard reduce vulnerabilities by preventing brute force attacks, but do not completely secure your PC.
Your setup is now ready and you can access the target PC remotely from anywhere on the planet as long as you have an active internet connection. You just have to adapt the connection by the Remote Desktop by a simple operation.
Connecting to Remote Desktop over the Internet
You can now perform all the activities you want with just more or less latency depending on the quality of the incoming and outgoing connection. Don't forget that you can transfer files from the remote computer to the one you are using and vice versa.
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