Players are reporting that when they play the game they get the error “Paradox launcher won’t launch. System can’t find bootstrapper-v2.exe”. This is due to Windows Defender or your anti-virus software is detecting the file as a virus and has probably quarantined it.
Open your anti-virus software, and in the quarantined items look for “C:\Users\YourUsername\AppData\Local\Programs\Paradox Interactive\bootstrapper-v2.exe”. Restore the file and create an exception for the game’s folder in your anti-virus and the game will boot up properly