External HDD formatting and blue screen

[Shiny]

So I get my computer fixed, its running fine and dandy. Until yesterday, when it hits a blue screen - the blue screen given was

or something similar. Now, is that down to a virus damaging drivers, or what? What should I do? Now is a good time to mention that I am running Ubuntu off a disk, as well, to access my computer. The repair man is coming around sometime tomorrow, hopefully.

 

Now might also be a good time to mention that my external HDD failed as well, and my data on it was lost. How would i reformat it so the hard drive works again? I have a WD My passport essentials 640GB. I also have my warranty in place. What do?

 

I'm in desperate need of help.

[Sbrideau]

Is your computer running well without blue screens now? that blue screen had to do with the hard drive driver.

[Shiny]

I'm running my computer in Ubuntu, because I was getting those blue screens.