Known issueFixUpdated · 5 replies on Steam
Upload Labs: Error: Failed to Start Process for This Game (0x11C7) (Workarounds)
Short answer
No confirmed fix yet. Players suggest: Nice try, hacker.
The problem
Windows 11 """"Smart"""" app control has suddenly blacklisted one of the executables from launching. I just recently moved to 26H2 revision, but it was working fine last night. I think you need to re-sign your executables.
What players suggest
Nice try, hacker. windows 11 smart app control is causing the error, turning it off fixes it
legit sometimes you just need to give it the good off on treatment specially with modern windows, try reseting your smart app control and the false positive SHOULD go away
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Source: original Steam Community discussion. Quotes are shortened; all credit goes to the posters.