It came out of the gates that way.
If you think you have a clean system that's set up exactly how you like it, CLONE that HD to a second drive, and save your documents, music, etc to a 3rd drive.
And by the way, I still wonder how many everyday crashes/corrupt files/bugs are attributed to viruses.
Hmmmm... like failure to delete errant .TMP files on one's PC, along with all abandoned docs starting with a tilde (~) leftover from prior aborted sessions.
Start > Run , CMD , ENTER
...a "DOS" window appears. Type the following in that window:
Add a backslash after the CD
DEL /S *.TMP ~*.* ENTER
When all is said and done, simply close the CMD window.