OK, here is the scenario:
1. My Git Repository got somehow messed up using Smart-Git. Note that I am using Smart-Git and not the Eclipse Git plug-in to work with GIT so all projects in Eclipse are created from existing source.
2. I could not figure out how to get out of the mess it was in, so I decided to just re-clone it.
3. So, I deleted my Git directory, and re-cloned it into the same place.
4. Most projects in Eclipse were fine after this, but for some reason one of them, was not fine, it was showing no files (interestingly other Git projects created in the same way ‘From Existing Source’ were fine).
5. So, I right-clicked on the Eclipse project having issues to delete it so that I could add it back.
6. Well, it was then that my E-Drive disappeared, having an SSD drive, it disappeared really, really fast!
I am pretty sure this was Eclipse that deleted the drive because this is the second time it has happened to me and the situation was very similar, including the re-cloning. Anyway, it seems if that something really bad goes wrong with the project in Eclipse that was created ‘From Existing Source’ and you try to delete it, it can delete the drive that Eclipse is installed on. At least it is some kind of situation like that.
I would be interested if this is something that could be confirmed by anyone.