Re: NFS 2015 not launching

We could start by trying the following, if you have not already!

Verify the game in via your Steam library
Clear EA App's Cache (Top Left Menu > Help > App Recovery)
Check for other applications that may be limiting EA App or Game performance
Close other running applications on your device
Run the System File Checker tool, then Check for Windows and GPU updates
Check Drivers, Default to High-Performance GPU: Troubleshooting Graphics issues
Restart your device in Clean Boot mode first then try again.

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