ntkmlpa.exe is a misreading of ntkrnlpa.exe (NTKRNLPA.EXE), it’s the part of the windows kernel (it’s the named process “NT Kernel & System”). You have misread the letters r and n (rn) as the letter m

There are various problems associated with ntkrnlpa.exe, so I suggest you redo your search with the correct file name and your search terms. It seems like a common problem is some corrupt system file, and doing a system repair might help.