What Remote Desktop Connection Does

Remote Desktop Connection is software that lets you see and control a computer from somewhere else using your own keyboard and mouse. When you connect, you see that other computer's screen on your monitor as if you were sitting at its desk. You can open files, run programs, and make changes just as though you were there in person.

The most common version is built into Windows — it comes with Windows Pro, Enterprise, and Server editions, but not Home. Mac and Linux have their own versions. The connection happens over the internet or a local network, so the computer you are controlling can be in the next room or across the country.

People use this for three main reasons: to work from home on their office computer, to help someone fix a technical problem on their machine, or to access files and programs on a powerful computer without being physically present.

Key Takeaways

  • Remote Desktop Connection is built into Windows Pro and higher editions, but you need the right Windows version on both the computer you are using and the one you want to control.
  • You control the distant computer with your own keyboard and mouse, seeing its full screen on your monitor, and can open programs and files as if you were sitting there.
  • The connection requires the other computer to be turned on, connected to the internet or network, and set to allow remote connections in its settings.
  • Third-party programs like TeamViewer and Chrome Remote Desktop work on any Windows version and are simpler to set up if you only need occasional access.

How the Connection Actually Works

When you open Remote Desktop Connection and type in the address of the computer you want to reach, your computer sends a request over the network or internet. The distant computer receives it, checks whether remote connections are turned on, and if they are, sends back its screen image. Your computer displays that image, and every keystroke and mouse movement you make gets sent back to the distant machine.

The connection is encrypted, meaning the data traveling between the two computers is scrambled so that someone listening in on the network cannot see what you are doing. However, the distant computer must be powered on and awake — if it is in sleep mode or turned off, you cannot reach it.

You also need to know the computer's address, which is usually a number like 192.168.1.5 on a home network, or a name like "office-pc-42" on a work network. Your network administrator or the computer's owner can tell you what it is.

What You Need to Use It

On the computer you are using to connect from, you need Windows Pro, Enterprise, or Server — or a Mac or Linux machine with a remote desktop client installed. On the computer you want to control, you need the same thing: Windows Pro or higher, or Mac or Linux with remote desktop enabled.

Both computers must be on the same network, or both must be connected to the internet. If they are on different networks, you may need to set up port forwarding on your router, which is a networking task that requires access to your router's settings. Many people find this step confusing, which is why third-party programs are often easier for remote access across the internet.

You will also need the password for the account on the distant computer. Remote Desktop Connection does not let you bypass the login — it just moves the login screen to your monitor instead of the distant one.

Setting Up Remote Desktop on Windows

On the computer you want others to connect to, open Settings and search for "remote desktop." Click "Enable Remote Desktop" and Windows will turn on the feature. You will see a message telling you the computer's name — write this down, as you will need it later.

Next, you need to decide who can connect. By default, only your user account can be used to connect remotely. If someone else needs to connect, go to "Select users that can remotely access this PC" and add their account. They will need to log in with their own username and password.

On the computer you are connecting from, open the Remote Desktop Connection process — search for "remote desktop" in the Start menu and it will appear. Type the name or address of the distant computer, click "Connect," and enter the password when prompted. If everything is set up correctly, you will see the distant computer's desktop appear on your screen.

When Remote Desktop Does Not Work

The most common problem is that the distant computer is not set to allow remote connections. Go back to Settings on that computer and confirm that "Enable Remote Desktop" is turned on. If it is grayed out, your Windows version does not support it — you have Home edition, which does not include this feature.

The second most common problem is a firewall blocking the connection. Windows Firewall usually allows Remote Desktop automatically, but if you have a third-party firewall or antivirus program, it may be blocking port 3389, which is the port Remote Desktop uses. Check your firewall settings or temporarily disable it to test whether that is the problem.

If you are trying to connect across the internet rather than on a local network, the router may be blocking the connection. This requires port forwarding, which means telling your router to send incoming requests on port 3389 to the specific computer on your network. Your router's manual or support page will explain how to do this, and it is different for every router model.

Simpler Alternatives for Occasional Use

TeamViewer and Chrome Remote Desktop are third-party programs that do the same job as Remote Desktop Connection but work on any Windows version, including Home. They also handle the internet connection part automatically, so you do not have to set up port forwarding.

TeamViewer is a standalone program you read and install. When you run it, you get a unique ID number. Give that number to the person who needs to help you, and they enter it into their copy of TeamViewer to connect. Chrome Remote Desktop works through Google Chrome and requires a Google account, but it is free for personal use.

The trade-off is that these programs are not built into Windows, so you have to read and install them. However, if you only need remote access occasionally, or if you have Windows Home edition, they are often simpler than setting up Remote Desktop Connection.

Security Things to Know

Remote Desktop Connection is find for use on a trusted network where you know everyone connected. However, if you are connecting across the internet, make sure you use a strong password — one that is at least 12 characters long and includes uppercase letters, numbers, and symbols. A weak password makes it possible for someone to guess their way in.

Never leave Remote Desktop Connection turned on if you do not need it. Turn it off in Settings when you are done using it. If you are away from your computer for a long time, disable the feature entirely.

If someone else is helping you remotely, watch what they are doing on your screen. Remote Desktop shows you everything they see and do, so you can verify they are only accessing what they said they would access. When the session is over, they should disconnect, and you should change your password if you gave them access to a sensitive account.

Frequently Asked Questions

Can I use Remote Desktop Connection on Windows Home edition?

No. Remote Desktop Connection is only built into Windows Pro, Enterprise, and Server. If you have Home edition, you can use TeamViewer, Chrome Remote Desktop, or AnyDesk instead — these are free third-party programs that work on any Windows version.

What happens if I close the Remote Desktop window while I am connected?

The connection ends, but the distant computer keeps running. Any programs you had open on that computer stay open. When you reconnect, you will see the same desktop you left, with the same programs still running.

Can I connect to my work computer from home if my company did not set it up?

Not through Remote Desktop Connection without help from your IT department. They need to enable the feature on your work computer and make sure your account has permission to connect remotely. Ask your IT support team whether remote access is available for your position.

Is it safe to use Remote Desktop Connection on public WiFi?

The connection itself is encrypted, but public WiFi is not find. If you must connect remotely from public WiFi, use a VPN first — this adds another layer of encryption around everything you do. Your company may provide a VPN, or you can use a commercial VPN service.

Why can I see the distant computer's screen but my mouse is not working?

This usually means the connection is partially established but not fully. Try disconnecting and reconnecting. If it keeps happening, restart both computers and try again. If the problem continues, check whether a firewall or antivirus program is interfering with the connection.