I pinned Windows Explorer's icon to my taskbar months ago, and all worked fine, including jump lists. Note: I changed the default Explorer's folder using the usual trick of changing the GUID in the shortcut.
Now, all of a sudden, the jump list is empty, and dropping folders on the pinned icon does not produce any effect, nor recently-opened folders show up in the list (although in the taskbar options I made sure to have it remember recently open items).
How can I restore the original functionality, given that all other pinned applications jump lists work correctly?
I'm running Windows 7 Ultimate x64, updated with the latest patches. The OS is in US English and my locale is Italian-Italy.
Best Answer
It turns out that it's some kind of obscure bug in Windows 7. The workaround is deleting the contents of the following (hidden) directories and then restarting:
After that, you'll have to re-add all your jump lists, as they will be empty.
Source: http://social.technet.microsoft.com/Forums/en/w7itproui/thread/8e3c2a80-392d-44e2-8b9f-6eb5deb9a1e1