Another simple solution is to use something like
Unlocker, a right-click Explorer extension. As you can see there, it's a pretty crowded field.
Installed it nearly a year ago and it's come in handy more often than I would've thought. Picked it because it was free, tiny, single-purpose extension and popular on
cnet.
Just make sure you get the correct version for your system, 32-bit or 64-bit (or no-install portable for either) and uncheck any third-party toolbars during installation, if you install.