I don't know what you installed, but I used "MoveOnBoot" before, and it doesn't display any message like:
"The file <file name> either is locked or does not exist. Do you want to continue?"
When you run "MoveOnBoot", it actually doesn't delete anything, because it's suppose to remove that file on next reboot.
If, after checking a file "MoveOnBoot" finds the file as deletable, it'll say:
Operation succeededIf it finds file undeletable, or it doesn't find a file, it says:
Operation failed