2.4.1 on YOSEMITE not working

[Carlo]

Originally Posted by xav

hello
here is the teminal answer
-r-xr--r--@ 1 root wheel 1447600 22 nov 14:25 PrivilegedHelperTools

Right OK that's the problem then. Repair permissions can not repair this because it's not the right kind of object.

That seems to be a link to something else and not a directory.
In that location there should be a directory with permissions drwxr-xr-t

I don't really want to risk breaking anything on your system but if it were mine I'd move whatever /Library/PrivilegedHelperTools is to somewhere else.
Then create the directory, adjust permissions etc. as per previous instructions.

Otherwise the safest is an OS reinstall of course to make sure all the OS files and directories are at the right place. But it takes quite some time.

Cheers,
Carlo