Your pictures do not match what I get in the DISM help screens. You are missing two whole categories, including the Package Servicing Commands of which "/Cleanup-Image" is one. That is why you get the error message that the option is unknown. I can only guess the option is not available to you because yours is a Legacy install. Maybe it exists in UEFI installations only.
Well, I see AamazingTech2 is onto something. I'll keep an eye on it & chime in if I think of more.
But I still think you might try the offline SFC & the Startup Repair three times in a row each, if they report an uncorrectable error. And show us a full BCDEdit too.
Sir, in startup repair i get srttrail.txt only and here is my full BCD