Fix problems that Windows 7 Favorites can't expand

The "Favorites" on the left side of Win7's Explorer provides the equivalent of "Shortcuts".
Today my windows 7 encountered a small problem, Explorer's "Favorites" could not be expanded, but "Library" and "Computer" can be. But click on "Favorites" to get to the "Favorites" folder, the shortcuts inside are not lost. I tried to right click on "Favorites" and select "Restore Favorites". The link has no effect. In other words, some reasons have caused the Windows 7 Explorer's "Favorites" to fail.
After searching for a long time, I didn't find the answer, so I used English as a keyword to search. After several links and jumped, I finally found the answer.
Win7 Favorites can not be unfolded solution:
In the "vistax64" forum, there are netizens posted the folder under Vista is emptied and the resource manager's "Favorites" can not be expanded Solution, one of the methods to modify the registry has been tested and valid, share as follows:
1, run regedit
2, expand to HKEY_CLASSES_ROOT\\lnkfile
3, add a string value: IsShortcut, do not need to fill out String value, press Enter
4. Re-login