I have good news for myself. I ticked EA, the stars are back, unticked EA and stars are still in place !

This is an example of "welcome to computers' world"....

By the way, there is no preferences.cfg file in : AppData\Roaming\Lockheed Martin\Prepar3D v5.

As I see, the job was done.

Many thanks once more !

Been on win 11 since I first purchased P3D. Never had any issues.

3 hours ago, Zatoichi said:

Been on win 11 since I first purchased P3D. Never had any issues.

If you use chaseplane or the aerosoft Airbus products in windows 11, you may notice some issues.  I myself wish I had never upgraded from windows 10

On 3/13/2026 at 12:12 AM, sotiris said:

I am now evaluating the possibility to upgrade to win11 from win10 and I 'm making a research about possible compatibility issues for some sim tools I currently use.

These are : ADE 1.79, AI Flow & AI Ground, AIFP3, AI-aircraft Editor, AITA2014, STBv5 (P3D), and SceneryConfigEditor v1.1.9.

Any issues reported with win11 ?

Thanks,

Sotiris

AI Flow,Ground,STB all fine for me.

Thanks Ian

On 3/14/2026 at 4:47 AM, okupton said:

If you use chaseplane or the aerosoft Airbus products in windows 11, you may notice some issues.  I myself wish I had never upgraded from windows 10

The toggling of a ChasePlane setting has now become standard procedure for me. I don’t even think about it any more. Given W10 is no longer supported I have no issues with 11. At least ChasePlane still works.

3 minutes ago, Ray Proudfoot said:

The toggling of a ChasePlane setting has now become standard procedure for me. I don’t even think about it any more. Given W10 is no longer supported I have no issues with 11. At least ChasePlane still works.

Quite so!

The only problem for me, is that I cannot get updates to install on my Win11 "unsupported" system. That doesn't really seem to be a problem, as everything is still working.

@IanHarrison try this…

To fix Windows 11 update issues, first 

run the built-in Troubleshooter (Settings > System > Troubleshoot > Other troubleshooters > Windows Update). Ensure you have at least 20GB of free space, disconnect unnecessary peripherals, and check that your date/time settings are automatic. If issues persist, clear the update cache by deleting files in C:\Windows\SoftwareDistribution. 

Microsoft +4

Here are specific steps to resolve Windows 11 update failures:

 

1. Initial Troubleshooting Steps

• Run the Troubleshooter: Go to Settings > System > Troubleshoot > Other troubleshooters, then click "Run" next to Windows Update.
• Check Disk Space: Ensure you have at least 16-20 GB of free space on your 😄 drive.
• Restart/Shutdown: A simple restart can often fix stalled update services.
• Check Time Settings: Ensure time is set to "Automatic" in Settings > Time & language > Date & time.
• Remove External Hardware: Disconnect external drives, printers, and USB devices, leaving only the mouse and keyboard. 
  Microsoft +3

 

2. Clear Windows Update Cache (Fixes Download Failures) 

If updates fail to download or install, clearing the cache often helps: 

1. Open File Explorer and go to C:\Windows\SoftwareDistribution.
2. Delete all contents inside the SoftwareDistribution folder. If prompted, skip files that are in use.
3. Restart your computer and try updating again. 
   Microsoft +1

 

3. Use Windows Tools to Fix Corrupt Files 

• Run System File Checker: Open Command Prompt as Administrator and run the command: sfc /scannow.
• Run DISM Command: In the same Administrator Command Prompt, run: DISM /Online /Cleanup-Image /RestoreHealth. 
  HP Support Community

 

4. Manually Update Windows 

If the updater is totally broken, you can force the update: 

• Windows 11 Installation Assistant: Download and run this tool directly from Microsoft's official website to force a feature update.
• Microsoft Update Catalog: Search for the specific KB number that is failing (e.g., "KB50... ") on the Microsoft Update Catalog website and install it manually. 
  Reddit +1

 

5. Check Compatibility and Services 

• Check Requirements: Ensure your PC meets minimum requirements, especially TPM 2.0 and Secure Boot, using the PC Health Check app.
• Check Services: Search for "Services" in the start menu, ensure Windows Update and Background Intelligent Transfer Service (BITS) are set to "Automatic" and are running. 

3 minutes ago, Ray Proudfoot said:

@IanHarrison try this…

 

To fix Windows 11 update issues, first 

run the built-in Troubleshooter (Settings > System > Troubleshoot > Other troubleshooters > Windows Update). Ensure you have at least 20GB of free space, disconnect unnecessary peripherals, and check that your date/time settings are automatic. If issues persist, clear the update cache by deleting files in C:\Windows\SoftwareDistribution. 

Microsoft +4

Here are specific steps to resolve Windows 11 update failures:

 

1. Initial Troubleshooting Steps

• Run the Troubleshooter: Go to Settings > System > Troubleshoot > Other troubleshooters, then click "Run" next to Windows Update.
• Check Disk Space: Ensure you have at least 16-20 GB of free space on your 😄 drive.
• Restart/Shutdown: A simple restart can often fix stalled update services.
• Check Time Settings: Ensure time is set to "Automatic" in Settings > Time & language > Date & time.
• Remove External Hardware: Disconnect external drives, printers, and USB devices, leaving only the mouse and keyboard. 
  Microsoft +3

 

2. Clear Windows Update Cache (Fixes Download Failures) 

If updates fail to download or install, clearing the cache often helps: 

1. Open File Explorer and go to C:\Windows\SoftwareDistribution.
2. Delete all contents inside the SoftwareDistribution folder. If prompted, skip files that are in use.
3. Restart your computer and try updating again. 
   Microsoft +1

 

3. Use Windows Tools to Fix Corrupt Files 

• Run System File Checker: Open Command Prompt as Administrator and run the command: sfc /scannow.
• Run DISM Command: In the same Administrator Command Prompt, run: DISM /Online /Cleanup-Image /RestoreHealth. 
  HP Support Community

 

4. Manually Update Windows 

If the updater is totally broken, you can force the update: 

• Windows 11 Installation Assistant: Download and run this tool directly from Microsoft's official website to force a feature update.
• Microsoft Update Catalog: Search for the specific KB number that is failing (e.g., "KB50... ") on the Microsoft Update Catalog website and install it manually. 
  Reddit +1

 

5. Check Compatibility and Services 

• Check Requirements: Ensure your PC meets minimum requirements, especially TPM 2.0 and Secure Boot, using the PC Health Check app.
• Check Services: Search for "Services" in the start menu, ensure Windows Update and Background Intelligent Transfer Service (BITS) are set to "Automatic" and are running. 

Hi Ray, That was so quick, it is almost a live chat!

I think I have seen most of these but will give them another go. Nothing to lose except time.

Ian, I type the question into Google. The more precise you are the better the result. Good luck!

2 hours ago, Ray Proudfoot said:

Ian, I type the question into Google. The more precise you are the better the result. Good luck!

Ray. I tried all those again. It kept coming back to "Unsupported Hardware" and refused to proceed. However, I tried ChatGPT and that has come up with lots of very fancy registry tricks which it says have fooled Microsoft checks in the past.

So here goes!

2 hours ago, Ray Proudfoot said:

 

 

Good luck Ian. It sounds like your PC is borderline for 11 but having allowed you to install it then updates should not be blocked. Bloody useless programmers! 

8 minutes ago, Ray Proudfoot said:

Good luck Ian. It sounds like your PC is borderline for 11 but having allowed you to install it then updates should not be blocked. Bloody useless programmers! 

After 2 hours, I finally found a tweak that worked. I am officially up to date.

Well, that was short-lived! Today, I checked that I was still up to date and was told in no uncertain terms that my PC is non compatible and CANNOT be updated.

So 100 registry entries have achieved zilch. (OK maybe not 100).