gone. vanished. forever.

If one fails to properly back files up on one's computer before updating it one can lose things such as: resumes, 3 years worth of their journal, 2 years of photos neatly organized, tax information for their new small business, kindergarten lesson plans, passwords and usernames for on-line billing, and various other things of significance. It's even more unfortunate if one does not have hard copies of many of these things...