Some times when you move to a different computer then, you may have to transfer your Help and support center favorites to the new computer.
Whenever you add a new favourite to your help and support center, it will be added to a file called Favorites.stream.
This file is present in the following directory:
%USERPROFILE%\Local Settings\Application Data\Microsoft\HelpCtr
Just copy and paste the above path to the run dialog box (start > run) to open the folder.
Copy the Favorites.stream file from the folder and paste it into the same folder( as stated above) in the other computer where you want to transfer your Help and support center favorites.
It is also very important to note that, the other computer should have the same primary drive letter. That is if one computer has its copy of windows in C: drive. Then the new computer also should have its copy of windows installed in C: drive.