Another version of this product is already installed

[Pickles von Brine]

When I launch the game I get the following message:

"Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel."

I have already attempted to uninstall the game through steam, through control panel, using revo uninstaller. I have also followed instructions provided in another thread step by step:

Please try uninstalling the Paradox Launcher from the control panel. If it won't go, use the free utilities Revo Uninstaller and Ccleaner to do that.

THEN Please try this:

- exit the Steam app entirely

Delete the following folders if still present:

- C:/users/<UserName>/AppData/Local/Programs/Paradox Interactive/
- C:/users/<UserName>/AppData/Local/Paradox Interactive/
- C:/users/<UserName>/AppData/Roaming/Paradox Interactive/launcher-v2/
To see the AppData folder you'll need to enable View Hidden Items in File Explorer.

- run steam.exe as the Windows Admin user

- run the game from the PLAY button in Steam

IF that doesn't help, in this folder are some .log files:
C:/users/<UserName>/AppData/Local/Paradox Interactive/launcher-v2/
Please attach them here.

Note that you can run stellaris.exe directly from Windows Explorer, which bypasses the launcher.

However, I still get the message.

Help would be appreciated.

Attempted are my launcher log files as well

 

[AndrewT]

The 1603/1605 errors we see there are typically a previous other installation stuck, or a problem in the Windows update/install processes.

If you see msiexec running in Task manager-processes, kill it and try this launcher install again please.

Otherwise run the Update app in Windows, does it load okay, find anything to apply - whether a patch, update, or whole new Windows 10 version? If so do that and reboot, then try this launcher install again please.

If still no good, do you see Paradox Launcher v2 in the Windows Control Panel to uninstall? If so does it uninstall cleanly, or get an error doing that? Then run this MS tool to remove it:

Fix problems that block programs from being installed or removed - Microsoft Support

The Program Install and Uninstall troubleshooter helps you automatically repair issues when you're blocked from installing or removing programs.

support.microsoft.com

 

[Pickles von Brine]

The 1603/1605 errors we see there are typically a previous other installation stuck, or a problem in the Windows update/install processes.

If you see msiexec running in Task manager-processes, kill it and try this launcher install again please.

Otherwise run the Update app in Windows, does it load okay, find anything to apply - whether a patch, update, or whole new Windows 10 version? If so do that and reboot, then try this launcher install again please.

If still no good, do you see Paradox Launcher v2 in the Windows Control Panel to uninstall? If so does it uninstall cleanly, or get an error doing that? Then run this MS tool to remove it:

There was a paradox launcher in control panel. Uninstalling that fixed my issue. Thank you!