Quick Assist lets someone you trust view your Windows screen and, with your permission, help control the PC. Both people open the app, the helper creates a security code, and the person receiving help enters it and approves screen sharing.
Use it for an agreed support session with a person whose identity you have checked. An unexpected caller claiming to be Microsoft is not a reason to give someone access to your computer.
Before you start
- Both PCs need working internet access and a supported Quick Assist setup.
- Open Start, search for Quick Assist and check that you are using Microsoft’s app.
- If the app is missing or asks to be updated, use its official Microsoft Store entry or your organisation’s approved installation method.
- Close private documents and unrelated apps before sharing your screen.
Microsoft’s Quick Assist guide explains the current sign-in, installation and connection requirements. Windows 10’s regular support has ended; check the supported setup and update arrangements for your edition.
If you are helping someone
- Open Quick Assist and choose the option to help another person.
- Sign in with the account requested by the app.
- Share the time-limited security code with the person you agreed to help.
- Wait for them to enter it and approve screen sharing.
- If you need to operate their PC, request control and wait for their separate approval.
Seeing the screen and controlling the computer are different permissions. Explain the changes you intend to make before asking for control.
If you are receiving help
- Open Quick Assist on the PC that needs help.
- Enter the helper’s security code in the support-code field.
- Check the displayed helper information and approve the connection only if it matches your agreed session.
- Approve control only when you want the helper to operate the PC.
- Watch the session and use the app’s stop or leave option when the work is finished.
Quick Assist or Remote Desktop?
| Tool | Main use |
|---|---|
| Quick Assist | An attended support session in which the person receiving help approves sharing. |
| Remote Desktop | Access to a configured remote computer, with separate edition, network and account requirements. |
Quick Assist does not require you to open a Remote Desktop port on your router. For a managed workplace device, contact the IT team instead of changing network or security rules yourself.
If the connection will not start
Check both internet connections, restart the app and confirm the code is still valid. Ask for a new code if it expired. If a work policy blocks the session, use the organisation’s approved support service.
For a broader check of suspicious calls and downloads, see our everyday browsing security guide.
Frequently asked questions
Does the person receiving help need to give control immediately?
No. Screen sharing and control are separate approvals. Grant only the access needed for the agreed task.
Can the helper connect later using the old code?
The code is time-limited. Do not treat it as an unattended-access password.
Why has my Quick Assist code stopped working?
It may have expired. Ask the helper to generate a new one and enter it in the current session.
Should I allow an unexpected support caller to connect?
No. End the call and contact the company through a known official channel if you need support.