Fix Win7 Explorer Favorites cannot be expanded

Today, the author's windows 7 encountered a small problem, the resource manager's "Favorites" can 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 Windows 7 Explorer's "Favorites" to fail.
I haven't found the answer for a long time. 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 forum, there are netizens posted a solution under the Vista is cleared and the Explorer's "Favorites" can not be unfolded, one of them The method of modifying the registry has been tested and validated as follows:
1. Run regedit
2. Expand to HKEY_CLASSES_ROOTlnkfile
3. Add a string value: IsShortcut, do not need to fill in the string value, press Enter.
4. Re-login