A newer version of Unlocker is available.Or, Learn More About Unlocker
Full user review
"Gives you back control in seconds!"
It's pretty rare to be completely locked out of a file - but when changing ownership, command promts, and safe mode all come to naught - Unlocker is the answer.
As freeware, you should be expecting to it to contain options to install toolbars and change your preferred search engine (like so many installations do these days).
Untick those options during the installation if you don't want those changes made. It will however, change your homepage, but simply change it back after installation.
Worked perfectly. I am quite relieved.
Although, once I used it, I uninstalled it anyway.