Please.

If you work for a small business or organization without the benefit of either a dedicated IT staff, or somebody who knows what they're doing, and some dedicated, proven, and automatic backup solution, stop what you are doing right now. Do not feign ignorance or incompetence. Set out. Fix the problem. Immediately.

All computers fail. And it is usually their storage mediums (hard drive, etc.) that go first, destroying your data.

I can assure you, the cost of system failure and recovery is far greater than the cost of an external hard drive and a bit of your time. If you want recommendations on how to do reliable, automatic backups, I can give them. They are relatively simple, usually free, and you can forget about them once they are working.

Don't let your entire business' livelihood sit on an iMac on the front counter. Don't make me have to put your hard drive in my freezer to get the heads cold enough to read data again. Don't make me have to guess which files are critically important to your organization and meticulously pore over them guessing at their possible contents. And don't assume I'll be able to fix the problem eventually.

Please.