@queenidog1 ,
Your config files were corrupted. Most likely, exiting Notepad++, renaming %AppData%\Notepad++ 🛈 (ie, open Windows Explorer, type%AppData% with the percent signs in the Explorer navigation bar, and renaming Notepad++ to Notepad++.bak), and re-starting Notepad++ will regenerate your config files to the default, and C++ should be back in the list.
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