What is remote support software? A beginner's guide
Remote support software lets a technician see and control another person's computer over the internet to diagnose and fix problems — without being in the same room. Here's how it works and what to look for.
What is remote support software?
Remote support software is a tool that lets one person — usually an IT technician or support agent — connect to another person's device over the internet, view their screen, and control the keyboard and mouse as if sitting in front of it. It turns "let me come to your desk" into a link or a code, so support can happen from anywhere.
It's the backbone of modern IT helpdesks, managed service providers (MSPs), software support teams and repair shops. Instead of travelling to a site or talking a user through fixes blindly over the phone, the technician simply connects and does it.
How does it work?
At a high level, there are three pieces:
- An agent or app runs on the device being supported (the client/end-user machine).
- A technician console runs on the supporter's side.
- A secure relay connects the two over the internet, encrypting the session so the screen, clicks and files pass safely between them.
For a one-off fix, the user often just runs a small app or clicks a link and reads out a session code. For ongoing management, a lightweight agent is installed once so the technician can connect any time (see unattended access below).
Attended vs unattended access
This distinction matters when choosing a tool:
- Attended (ad-hoc) access: the end user is present and actively grants the session — typical for live helpdesk calls. Nothing stays installed afterwards.
- Unattended access: an agent is installed so the technician can connect even when nobody's at the machine — essential for servers, overnight maintenance and managing fleets of devices.
Key features to look for
- File transfer between the two machines
- Multi-monitor support for users with several screens
- Cross-platform coverage (Windows, macOS, Linux, mobile)
- Session recording and logging for audit and training
- Chat during the session
- Security controls: encryption, multi-factor authentication, permission prompts
- Unattended access if you manage devices long-term
Common uses
- IT helpdesks fixing staff computer issues
- MSPs managing many clients' devices remotely
- Software vendors supporting customers
- Accessing your own office PC from home (remote work)
- Helping family with tech problems from afar
How to choose the right tool
Match the tool to the job. For simple, occasional support, a lightweight tool like AnyDesk or Zoho Assist is ideal. For an all-in-one support platform with ticketing, look at GoTo Resolve. If you're managing a whole fleet of devices, you may want an RMM — see what is RMM? — rather than a pure support tool. Our best remote support software guide ranks the top picks.
Staying safe
Because remote support software gives full control of a computer, it's a prime target for scammers who phone victims pretending to be "tech support" and ask them to install it. The rule is simple: never install remote-access software or share a session code with someone who contacted you unexpectedly. Our remote-access security guide explains how to use these tools safely.
Frequently asked questions
Is remote support software safe?
The reputable tools are secure, using encryption and multi-factor authentication. The real danger is social engineering — scammers tricking people into granting access. Only ever allow a session with someone you trust and contacted yourself.
What's the difference between remote support and remote access?
They overlap. 'Remote support' usually means helping someone with their device (often attended); 'remote access' often means connecting to your own device remotely (often unattended). Many tools do both.
Do I need to install anything?
For one-off attended support, usually just a small run-once app or browser-based session — nothing permanent. For unattended access, a lightweight agent is installed once.
What is unattended access?
It's the ability to connect to a device when no one is present, via a pre-installed agent — essential for servers and managing fleets of machines.