Today, a small series of Windows 7 suddenly found shortcut key win+e can not open the Explorer, it is too inconvenient, for this little thing reload system too troublesome, studied a bit, finally found a solution:
Type Regedit.exe, enter, and open Registry Editor in the Start search field.
If a User Account Control window pops up, please allow to continue.
Locate registry key: Hkey_classes_rootfoldershellexplorecommand.
In the Right Detail window, locate the value Delegateexecute and double-click to open it. (Improper registry modification can cause serious problems, we recommend that you make a backup of this item before you modify it)
Check to see if the content in the Delegateexecute value data bar is {11DBB47C-A525-400B-9E80-A54615A090C0}.
If not, please enter {11DBB47C-A525-400B-9E80-A54615A090C0} to replace the meta content. Press the OK button to save the changes.
OK, quit Registry Editor. You do not need to reboot your computer to take effect. By pressing the Win+e key, you can open the library or point to the location of your custom resource manager.