Windows 11 S mode restricts app installation to the Microsoft Store. Microsoft designs it for security and performance, but many users need full desktop access. Normally, switching out of S mode takes one click. However, the Microsoft Store often fails with the error: “Something happened and we couldn’t start the upgrade.”

This guide explains why the error happens and shows every working fix that actually resolves the issue.
What Causes the S Mode Switch Error in Windows 11
Windows does not remove S mode locally. The system depends on Microsoft Store licensing servers to unlock it.
The switch fails when:
- Microsoft Store account sync breaks
- Region licensing fails
- The Microsoft account lacks entitlement
- Store backend services return errors
Resetting Windows does not fix this issue because the failure occurs on Microsoft’s servers.
Step 1: Sign In With the Correct Microsoft Account
Windows requires a verified Microsoft account to disable S mode.
Do this first:
- Open Settings → Accounts
- Confirm Windows uses a Microsoft account, not a local account
- Open Microsoft Store
- Click the profile icon
- Make sure the same account appears in both places
If the accounts differ, the Store cannot unlock S mode.
Step 2: Use the Microsoft Store Page Directly
The Settings app often fails to open the correct Store listing.
Follow these steps:
- Open Microsoft Store
- Search for Switch out of S mode
- Open the official listing
- Click Get
If the Store shows the same error, continue to the next fix.
Step 3: Change the System Region Temporarily
Microsoft ties S mode licensing to Store regions. Changing the region forces a backend refresh.
Steps:
- Open Settings → Time & Language → Language & Region
- Change Country or region to United States
- Restart the system
- Open Microsoft Store
- Search Switch out of S mode
- Click Get
You can revert the region after the switch completes.
Step 4: Create a New Microsoft Account (Most Reliable Fix)
Many S mode failures link to broken account entitlements. A new account forces a clean license request.
How to do it:
- Create a new Microsoft account
- Open Settings → Accounts
- Sign out of the current account
- Sign in with the new account
- Open Microsoft Store
- Search Switch out of S mode
- Click Get
This method resolves the issue on most Windows 11 Home laptops.
Step 5: Lenovo, HP, and Dell Laptop Users — Important Note
Manufacturers cannot disable S mode manually. BIOS changes, drivers, and factory resets do not unlock it.
Only Microsoft Store licensing removes S mode.
Step 6: Clean Install Windows 11 (Guaranteed Solution)
If all Store-based methods fail, a clean installation removes S mode permanently.
This method deletes all data.
Steps:
- Download the Windows 11 Media Creation Tool
- Create a bootable USB
- Boot from the USB drive
- Select Windows 11 Home during setup
- Complete installation
The system installs without S mode.
What Will Not Fix This Issue
Avoid wasting time on these steps:
- wsreset.exe
- Store repair or reset loops
- Reset this PC
- Windows Update service restarts
- BIOS updates
They do not fix backend licensing failures.
Windows 11 S mode switching fails due to Microsoft Store entitlement issues, not system corruption. Creating a new Microsoft account or changing the Store region solves the problem in most cases. A clean installation remains the last and guaranteed fix.
If new changes affect the S mode switch process, updates will follow.
