How to Install Tax Software on a Surface in Windows S Mode
Question details
The user needs to install third-party tax software on a Microsoft Surface, but the installation is blocked because the device only allows apps from the Microsoft Store.

- Product
- Windows 10/11 S Mode
- Device & OS
- Windows
- Scenario
- Attempting to install downloaded tax software from an external website on a Surface Go or similar device.
- Observed behavior
- Windows blocks the installation process, displaying a message that only verified apps from the Microsoft Store can be installed while in S mode.
Before switching out of S mode, ensure that your tax software has been downloaded from a trusted, official source, as leaving S mode permanently removes the strict Microsoft Store security restrictions.
Switch Out of Windows S Mode via Settings
Since S mode restricts software installations to the Microsoft Store, you must switch out of S mode to install standalone tax software.
Windows 10 and Windows 11 in S mode are designed for maximum security and performance by exclusively running verified apps from the Microsoft Store. Because most major tax software applications are downloaded directly from the provider's website, you must opt out of S mode to proceed.
Please note that switching out of S mode is a one-way process. Once you make the switch to install your tax software, you cannot revert the device back to S mode.
Press the Windows logo key + I on your keyboard, or click the Start button and select the Settings gear icon.
On Windows 11, go to System > Activation. On Windows 10, navigate to Update & Security > Activation.
Locate the section titled 'Switch to Windows 11 Pro' or 'Switch to Windows 10 Home' and click the 'Go to the Store' link. Do not click the link under 'Upgrade your edition of Windows'.
A Microsoft Store page titled 'Switch out of S mode' will appear. Click the 'Get' button and wait for the confirmation message stating that you have successfully switched out.
Locate the setup file for your tax software in your Downloads folder and double-click it to begin the installation normally.

Manage Your Tax Documents with WPS Office
While configuring your Surface device for tax software, consider upgrading your document management tools. WPS Office is a free, lightweight suite that is fully compatible with Microsoft Office formats, making it perfect for handling tax spreadsheets, financial PDFs, and receipts.
- 1. Download the Installer: Visit the official WPS Office website and download the Windows installation file to your Surface.
- 2. Install WPS Office: Run the installer and follow the quick on-screen instructions to set up the software.
- 3. Open Your Financial Records: Launch WPS Spreadsheet or WPS PDF to immediately begin managing your tax exports and financial documents.

Frequently Asked Questions
Why does my Surface Go block tax software installations?
Surface Go devices often ship with Windows in S mode by default. This mode restricts all application installations strictly to the Microsoft Store to enhance device security and battery life, preventing third-party executables like downloaded tax software from running.
Can I revert back to Windows S mode after installing my tax software?
No. Switching out of S mode is a permanent, one-way process. Once you switch out of S mode to install third-party software, you cannot return your device to its previous S mode state.
Is it safe to switch out of S mode on my Surface?
Yes, it is generally safe as long as you practice good digital hygiene. Because S mode provides an extra layer of security by restricting unverified apps, you will need to be careful to only download software and files from trusted, official sources once it is disabled.
How do I know if my Surface is currently in S mode?
You can verify this by opening Settings > System > About. Scroll down to the 'Windows specifications' section and check the 'Edition' line. If it says 'in S mode' at the end (for example, Windows 11 Home in S mode), then the feature is currently active.




