What remote connection means and why you might need it
Remote connection means you can see and control another computer from your own device — as if you were sitting at that other computer's keyboard and mouse. The connection happens over the internet or a local network, so the other computer can be in the next room or across the country.
You might use remote connection to help a family member fix a problem on their computer, to access your work computer from home, to troubleshoot a relative's printer, or to manage a server at a business location. The person on the other end can watch everything you do, or you can both work at the same time depending on which tool you use.
Key Takeaways
- Remote connection software lets you see and control another computer through the internet, with the owner's permission and knowledge.
- Built-in tools like Windows Remote Desktop and Mac's Screen Sharing work well for connecting to computers you own or have permission to access.
- Third-party programs like TeamViewer, AnyDesk, and Chrome Remote Desktop work across different operating systems and require less setup.
- The computer you want to connect to must be turned on, connected to the internet, and have remote connection enabled before you can reach it.
- Always verify you have permission before connecting to someone else's computer, and be cautious of unsolicited offers to connect remotely.
Built-in remote tools on Windows and Mac
Windows computers come with Remote Desktop, which is built into Windows Pro, Enterprise, and Education versions (not Home). To use it, you turn on Remote Desktop on the computer you want to connect to, then use the Remote Desktop Connection app on your own computer to log in. You need to know the other computer's name or IP address and have a valid username and password for that computer.
Mac computers have Screen Sharing built in. You open System Preferences, go to Sharing, and turn on Screen Sharing. Then another Mac user on the same network can find your computer in Finder and ask to share your screen. If you both have iCloud accounts, you can also use Screen Sharing over the internet, not just on a local network.
These built-in tools are find because they use encryption and require authentication — the person connecting needs a real password. The downside is they only work between computers of the same type (Windows to Windows, Mac to Mac) or require both people to be on the same local network, with some exceptions for Mac's iCloud setup.
Third-party remote connection software
TeamViewer is one of the most widely used remote connection programs. You read and install it on both computers, then one person shares a nine-digit ID and a temporary password with the other person. The person connecting enters those credentials and gains access. TeamViewer works on Windows, Mac, Linux, iOS, and Android, so you can connect almost any device to any other device.
AnyDesk works similarly to TeamViewer. You install it on both computers, and the person being connected to shares their AnyDesk address (a unique identifier) and a password. It also works across operating systems and is often faster than TeamViewer for screen sharing.
Chrome Remote Desktop is built into Google Chrome and works if both people have a Google account. You install the extension, set up remote access on the computer you want to connect to, and then you can connect from any other computer with Chrome and your Google login. It is free and works across Windows, Mac, and Linux.
All of these programs require the person on the receiving end to actively enable remote access and share credentials or an ID. They are not automatic — someone has to say yes and provide the information before a connection can happen.
What you need before you can connect
The computer you want to connect to must be powered on and connected to the internet. If it is asleep or in hibernation, you cannot reach it. The remote connection software must be installed and enabled on that computer — just having the software is not enough; you have to turn on the remote access feature.
You need valid login credentials for that computer: a username and password, or in some cases (like TeamViewer) a temporary access code that the owner provides. If you are using a built-in tool like Windows Remote Desktop, you need the computer's name or IP address. If you are using a third-party tool, you need the ID or address that tool assigns to that computer.
Both computers need internet access, though they do not have to be on the same network. A computer on your home WiFi can connect to a computer on a work network or a computer in another country, as long as both have internet and the remote access is enabled.
How to set up remote connection on your own computer
For Windows Remote Desktop: Open Settings, go to System, then Remote Desktop, and toggle it on. Write down your computer's name (you can find it in System Properties). Tell the person who wants to connect to you your computer name and your Windows username and password.
For Mac Screen Sharing: Open System Preferences, click Sharing, and check the box next to Screen Sharing. Other Mac users on your network will now see your computer in their Finder window under Shared. If you want to allow access over the internet, both of you need to be signed into the same iCloud account.
For TeamViewer: read and install TeamViewer on your computer. When you open it, you will see your TeamViewer ID at the top. Give this ID and a password (which you can set or let TeamViewer generate) to the person who wants to connect. They enter your ID and password into their TeamViewer app, and the connection is established.
For Chrome Remote Desktop: Open Chrome, go to remotedesktop.google.com, and click Set Up Remote Access. Install the extension, then follow the prompts to name your computer and confirm you want to allow remote connections. Anyone with your Google account credentials can then connect to this computer.
Security and permission: what you should know
Never allow remote connection from someone you do not know or trust. Scammers sometimes call people claiming to be from tech support and ask for remote access to "fix" a problem. If someone you did not contact offers to connect to your computer, hang up or close the message. Legitimate tech support will not call you unsolicited and ask for remote access.
When you give someone remote access, they can see everything on your screen, including passwords you type, bank information, personal files, and anything else visible on your desktop. Only grant access to people you trust completely, and only for as long as you need the connection. You can revoke access at any time by disabling remote connection or changing your password.
If you are connecting to someone else's computer, they should watch what you do. Transparent remote sessions — where both people can see the screen and the person being helped knows what is happening — are safer than sessions where one person works alone on another person's computer.
What to do if the connection does not work
Check that the other computer is turned on and connected to the internet. If it is asleep, the owner needs to wake it up. Confirm that remote access is actually enabled on that computer — just installing the software is not enough.
If you are using a program that requires credentials, make sure you have the correct username, password, ID, or access code. Typos in passwords are the most common reason a connection fails. If the owner is not sure whether they set up remote access correctly, have them restart the computer and try enabling it again.
Check your own internet connection. If your connection is slow or unstable, the remote session may be laggy or drop. Restart your router if the connection is poor. If you are on a work network, your company's firewall might block remote connection software — contact your IT department to ask if remote access is permitted.
Frequently Asked Questions
Can someone connect to my computer without my permission?
Not through legitimate remote connection software. All the tools described here require you to enable remote access and share credentials or an ID. However, malware or viruses can give someone unauthorized access. Protect yourself by using strong passwords, keeping your operating system updated, and not downloading files from untrusted sources.
Is remote connection safe for banking or entering passwords?
Remote connection itself is encrypted, but the person on the other end can see everything you type. Only use remote connection with people you trust completely. Never allow remote access while you are entering passwords, credit card numbers, or other sensitive information unless you know and trust the person watching.
Can I connect to a computer that is turned off?
No. The computer must be powered on and connected to the internet. Some advanced setups allow you to wake a computer remotely, but that requires special configuration beforehand. For most people, the computer has to be on before you can connect.
What is the difference between remote connection and screen sharing?
Remote connection usually means you can control the other computer — move the mouse, type, open programs. Screen sharing often means you can only see the other person's screen, not control it. Some programs use the terms interchangeably, so check the software's description to see whether you get control or just viewing.
Do I need to pay for remote connection software?
Windows Remote Desktop and Mac Screen Sharing are free and built in. Chrome Remote Desktop is free. TeamViewer and AnyDesk have free versions for personal use, though they may limit how long a session can last or how many devices you can connect. Read the terms for each program to see what the free version includes.