After running CCleaner, my Start Menu MRU's(?) are missing. (I think that they are called MRU's.

It's the Start list of recently used programs. They are gone and won't come back!

Anyone know how to get them back?

Thanks

Untick the 'User assist history' in the cleaners advanced section (the list will automatically rebuild). Its generally best not to have anything in the advanced section ticked unless you know what you're doing. Have a read of the beginners guide for more info on what each option does:

http://www.internetrotsyourbrain.com/ccleanerbeginnersguide/

Sorry, that did not work. They won't rebuild. They are just gone.
I now agree with your advanced comment! I shouldn't have done it!

If you right click on your start button and choose properties start menu, customise you may be able to see if some options have been changed in there, eg how many are listed in the number of start menu items under the general tab.
In the advanced ( be careful, and remember what you do) does anything look obvious?

Also have a read here

http://windowsxp.mvps.org/startmfu.htm

How did you open the programs that did not add to the MRU list? Some applications, e.g., Word, will not be added to the list if you double click a file to open the associated application. You have to open the application directly using Start > All Programs > ... (Oddly, Excel doesn't have this quirk.)

Some applications seem to require several uses before being added.

Some applications are excluded and will never be added automatically . You have to manually add them to the pinned list.

Was this ever resolved? I had the same thing happen to me (XP). I followed the links provided, but none of the registry keys listed are in my registry. The MFU list in the Start menu just won't come back.