Still can't find "Help and Support"

Kelly, I tried your fix - but it didn't work. I get the same error message.
Is there another way to fix this problem? Perhaps, I can replace the file
manually (if I knew where it belonged). I have another partition on my
drive with the exact same operating system. Perhaps, I could copy
helpctr.exe from that partition to the one where it doesn't work? Thanks
again........

ORIGINAL MESSAGE: When I click on Start<Help and Support, I get a message
which says that
"Windows cannot find 'helpctr.exe'. Make sure you typed the name correctly
and then try again. To search for a file, click the Start button, and then
click Search." Search finds a number of versions of helpctr.exe - but that
doesn't put a copy of the file where it belongs. The version it finds that
works when I double click on it is in C:\WINDOWS\PCHEALTH\HELPCTR\Binaries.
Can someone tell me how to correct this problem? Thanks!!!