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ACS Blog

Upgrade from Windows S Mode to Windows 11 Pro

This guide is for small-business employees whose Windows 11 computer is running in S mode and who need to switch to Windows 11 Pro. The fix is free, takes only a few minutes, and is completed entirely through the built-in Settings app and the Microsoft Store — no special software required. Be aware that the switch is permanent and cannot be undone.

Before You Begin

Make sure you have the following in place before you start:

  • Microsoft account: You must be signed in to Windows with a Microsoft account, not a local account. The switch will not complete without one.
  • Back up your files: The process is generally smooth, but it is a good idea to back up any important files beforehand since you cannot return to S mode after the switch.
  • Windows activation: Confirm your copy of Windows is activated by going to Settings > System > Activation before proceeding.

Steps to Switch from S Mode to Windows 11 Pro

  1. Open Settings: Press the Windows key + I on your keyboard, or click the Start menu and select the gear icon to open the Settings app.
  2. Go to Activation: In the Settings app, select System from the left-hand menu, then scroll down and click Activation.
  3. Open the Microsoft Store: Find the section labeled Switch to Windows 11 Pro and click the Go to the Store link. Be careful to select this specific link — do not click the “Upgrade your edition of Windows” option, which will keep you in S mode.
  4. Complete the switch: The Microsoft Store will open to a page titled Switch out of S mode. Click the Get button to start the process. This switch is free of charge.
  5. Wait for the process to finish: Windows will apply the changes automatically. After a short time, your PC will no longer be in S mode.

Troubleshooting

If something goes wrong during the switch, try these steps:

  • Restart your PC and attempt the process again.
  • Confirm Windows is activated at Settings > System > Activation.
  • Check for any available updates in the Microsoft Store by going to Library > Get updates, then retry the switch.

If you continue to have trouble, contact ACS for support.

Common questions

Is switching out of Windows S mode free?

Yes. Switching from Windows 11 S mode to Windows 11 Pro is completely free. You do not need to purchase an upgrade — just click the Get button in the Microsoft Store on the Switch out of S mode page.

Can I go back to S mode after switching to Windows 11 Pro?

No. The switch from S mode to Windows 11 Pro is permanent. Once the process is complete, you cannot return to S mode, which is why it is recommended to back up your important files before you begin.

Why do I need a Microsoft account to switch out of S mode?

The Microsoft Store — which handles the switch — requires you to be signed in with a Microsoft account. If you are currently using a local account on your PC, you will need to sign in or add a Microsoft account in your Windows settings before you can complete the process.