How to Access Another Computer Remotely: A Simple Guide for Beginners

Accessing another computer remotely means you see its screen on your device and, if allowed, use its mouse and keyboard as if you were sitting in front of it. People do this to help a relative with a problem, to reach an office computer from home, to give a colleague a demo or to provide IT support. This guide explains how it works and shows the simplest and safest way to do it.

How remote access works

Both computers need to find each other and agree to connect. One side shares its screen; the other side views it, and may be allowed to control it. The connection itself can run straight between the two devices (peer to peer) or through a company's servers. Peer-to-peer connections are usually quicker and keep your screen off third-party servers.

What you need

• A computer to be accessed (the one that shares its screen).
• A device to connect from: another computer, a tablet or a phone.
• An internet connection on both sides.
• A way to pass a short code, such as a phone call or a chat message.

You do not need to open ports on your router or know any IP addresses.

Step by step with PeerFlow

1. On the computer to be accessed, open the PeerFlow desktop app (get it from the download page), go to Remote access and press Share this device. Choose the screen or window to share.
2. You will see a short code such as K7Q2-M9XA, a link, and buttons to copy or share them. You can also send the code into a PeerFlow chat.
3. On the device you connect from, open the PeerFlow app, go to Remote access, type the code under Connect to a device and press Connect. The screen appears.
4. You control the computer with your mouse and keyboard as if you were sitting there. This needs the PeerFlow desktop app on that computer, and the person there can switch control off at any time.
5. When you are done, press Disconnect or Stop sharing. You can also press New code, which makes the old code useless.

Things you can do during the session

• Scale the window to your screen or go full screen so you have the whole picture.
• Type with your normal keyboard, including shortcuts, or use the on-screen typing bar on a phone.
• Copy and paste text between the two computers.
• Draw an arrow or use a laser pointer to show where to click (the person sharing is asked first).
• Chat, talk or send a file without leaving the session.
• Save a screenshot or record the session.

Staying safe

Remote access is powerful, so a few habits matter:

• Only give a code to someone you trust, and never to a stranger who phones you "from technical support".
• Leave control off unless it is really needed. Watching is often enough.
• Watch what happens on your screen, and press stop if anything looks wrong.
• End the session when the job is finished; a code is valid only for that session and can be replaced with a new one at any time.
• Prefer tools that connect devices directly and encrypted, so your screen is not stored anywhere.

Other ways to access a computer remotely

Operating systems have built-in tools (such as Windows Remote Desktop), but they usually require network configuration, a fixed address and a compatible Windows edition, which is hard for non-technical users. Dedicated programs like AnyDesk, UltraViewer and TeamViewer are easier; you can see how they compare in our guides to an AnyDesk alternative and a TeamViewer alternative.

Summary

For a one-off or occasional session, a code-based tool is the easiest route: share, type the code, and you are connected, with no accounts and no router settings. Get the app from the download page, or learn more about remote desktop with PeerFlow.