How to Fix Forza Horizon 6 “E:0-17 Save File Failed” Error on PC

To fix the Forza Horizon 6 E:0-17 “Save File Failed” error, rename your Windows hosts file (C:\Windows\System32\drivers\etc\hosts) to hosts.old, flush your DNS via Command Prompt (ipconfig /flushdns), and restart the Xbox Live Auth Manager service. This unblocks the Microsoft telemetry validation servers causing the loop.

Few things are more frustrating than hitting a wall before you even reach the main menu. If you are launching Forza Horizon 6 on PC, pressing Enter on the title screen, and getting hit with the dreaded “E:0-17 Save File Failed” profile sync loop, you aren’t alone.

Also Read: Forza Horizon 6 Has Hit an Unexpected Error: FHE01

While the warning sounds terrifying, implying your hundreds of hours of garage progress are completely gone, the good news is that your save file is likely perfectly safe. This isn’t a corruption issue; it is a communication failure.

Also on Axeetech: Forza 6 Invalid Gaming Services detected FIXED

What Causes the FH6 E:0-17 Save File Failed Error?

The E:0-17 error triggers due to a network verification timeout between the Xbox Live Cloud Profile layer and your local Windows installation.

When Forza Horizon 6 boots, it contacts specific Microsoft telemetry and authentication endpoints to verify your digital signature and sync cloud data. If this handshake times out or is blocked, the game safely locks down and throws the E:0-17 error code rather than risking overwriting your data.

Also Read: Destiny 2 Cabbage Error Fix

The True Culprits: Privacy Tools and Blocklists

If you are getting this error, it is highly probable that you or your system software modified how Windows talks to Microsoft servers. The most common triggers include:

• Windows Aggressive Debloaters: Tools like Ghost Toolbox or custom Windows ISOs.
• Privacy Optimization Software: O&O ShutUp10++, Privacy Spy, or anti-beacon tools that disable telemetry.
• Custom Hosts Files: Blocklists designed to stop Windows telemetry that inadvertently block the specific endpoints required by newer Xbox Live ecosystem games.

Step-by-Step Guide to Fix the E:0-17 Profile Loop

This procedural fix restores the vital communication paths required by Forza Horizon 6 without touching or wiping your local game files.

1. Expose the Windows System32 Drivers Folder: Requires Admin Access.

Press Win + R on your keyboard to open the Run dialog box. Type or paste the following path exactly and hit Enter: C:\Windows\System32\drivers\etc Locate the file named hosts (note: it will not have a file extension like .txt).

2. Isolate and Backup Your Hosts File: Network Routing Bypass.

Right-click the hosts file and select Rename. Change the filename to hosts.old. Why this works: This instantly stops Windows from utilizing your active blocklist, removing any accidental bans on Microsoft login verification servers.

3. Flush Your System Network Resolver Cache: DNS Flush via CMD.

Type cmd into your Windows Start menu, right-click Command Prompt, and select Run as Administrator (Ctrl + Shift + Enter). Type the following command and hit Enter: ipconfig /flushdns This clears out old, stale, or blocked network routing paths saved on your PC.

4. Reset Xbox Live Authentication Pipelines: Service Token Restart.

In that exact same Administrator Command Prompt window, type these two commands one after the other, hitting Enter after each:

The DOS Command

net stop XblAuthManager
net start XblAuthManager

This forces Windows to kill its old security tokens and cleanly rebuild its connection to the Xbox authentication grid.

5. Boot Forza Horizon 6 and Establish Profile Sync: Final Verification.

Launch Forza Horizon 6 normally. The game should now cleanly handshake with the Xbox cloud save network, completely bypass the E:0-17 block screen, and automatically sync your profile data.

Secondary Fixes If E:0-17 Persists

If resetting your hosts file and flushing your DNS didn’t completely solve the problem, it means local Windows services are still actively refusing to contact the validation endpoints.

1. Resetting the Xbox Live Auth Manager Service Manually

Sometimes the command line fails to force start the service if it has been permanently disabled by a privacy script.

1. Press Win + R, type services.msc, and press Enter.
2. Scroll to the bottom of the list and locate Xbox Live Auth Manager.
3. Right-click it and select Properties.
4. Change the Startup type dropdown menu to Automatic.
5. Click Apply, then click Start under the Service Status section.

2. Clearing Local Connected User Experiences Cache

The “Connected User Experiences and Telemetry” component handles the backend data transmission. If its cache is corrupted, it will hold onto blocked routes.

1. Open your Windows Command Prompt as an Administrator.
2. Run the following command to stop the diagnostics pipeline tracking system: net stop diagtrack
3. Launch Forza Horizon 6 immediately afterward to force the game to bypass this service during initialization.

How to Re-enable Your Privacy Tools Safely Post-Fix

You do not have to leave your system completely vulnerable or lose your privacy tools just to play Forza Horizon 6. Once your profile syncs successfully for the first time, you can restore your original settings with a few manual exceptions.

If you are using O&O ShutUp10++, open the app and make sure to uncheck/disable the following rules:

• Disable Xbox companion app connectivity
• Disable telemetry data transmission

If you want to use your custom hosts file again, rename hosts.old back to hosts, open it in Notepad as an administrator, and find and remove lines containing these specific domains to ensure they remain unblocked:

• v10.events.data.microsoft.com
• title.mgt.xboxlive.com
• settings-win.data.microsoft.com

Once these endpoints are whitelisted, your privacy scripts can stay active, and your festival garage will remain safely accessible!

Also Read: How to play FH6 on PC

Frequently Asked Questions about E:0-17 error

1. Will fixing the E:0-17 error delete my Forza Horizon 6 game progress?

Answer: No. Your save file data is stored securely in the Xbox cloud network and mirrored locally in a separate encrypted folder. The E:0-17 error is purely a network handshake blockage, not a file corruption issue. Renaming your hosts file or resetting your network configuration will simply restore the connection so the game can safely read your progress—it will not wipe your garage or campaign stats.

2. Can I just reinstall Forza Horizon 6 to fix the “Save File Failed” loop?

Answer: In most cases, reinstalling the entire game is a waste of time and data. Because the root cause is usually a Windows system-level telemetry block (caused by privacy software, debloaters, or modified hosts files), downloading the game files again won’t fix the underlying communication failure. You must manually unblock the Microsoft authentication servers using the network or service fixes outlined in this guide.

3. Why did this error suddenly start happening after a Windows update?

Answer: Windows Updates frequently reset core system behaviors, restart previously stopped background services, or change how local security policies interact with third-party software. If you used a Windows “debloating” script or a privacy utility (like O&O ShutUp10++) in the past, a fresh Windows update can cause a conflict between those old blocklists and the newly updated Xbox Live authentication protocols, triggering the E:0-17 validation loop.

4. How do I fix the E:0-17 error if I play Forza Horizon 6 on Steam?

Answer: Even if you bought the game on Steam, Forza Horizon 6 still relies entirely on the Xbox Live backend for profile syncing on PC. Steam users face this exact same error if their Windows XblAuthManager (Xbox Live Auth Manager) service is disabled or if Windows telemetry endpoints are blocked. Follow the exact same hosts file and DNS flushing steps, as they fix the Windows environment that the Steam version relies on.

5. What should I do if the E:0-17 error code switches to an E:47-0 error?

Answer: Be cautious. While E:0-17 means the game cannot connect to read your profile, E:47-0 usually indicates that the game successfully connected but discovered that the local or cloud save file is actively corrupted. If you see E:47-0, do not try to force sync. Instead, back up your local profile folder immediately (%LOCALAPPDATA%\Packages\Microsoft.624...) and contact Forza Support to request a profile data rollback.