There have been some issues about these auto updates, especially BIOS updates.  

First thing check that you really need it.  It may have already installed. 

If not installed, I would manually download the BIOS update and apply it as this seems to be the safest method.

The free SPECCY program will profile your PC and show what the BIOS level is.

https://www.ccleaner.com/speccy

As with any free program, watch for any unwanted add on programs, when you run the program installer.

I do I tell if I already have it?

One or two months ago I got a problem. When my laptop stopped charging. But when I updated BIOS, the problem was solved. I suggested you to do it.

Don't mean to revive this thread but everyday I'm getting pestered by update notices. Do I really need to update? I have a A08 driver and it keeps telling me to update to A10. Everyday I get this

Some technician told me on Facebook that damage might occur with the update which is why I'm reluctant to do it. Do I really need the update. Isn't A08 good enough?

Generally I say BIOS updates are not needed unless it fixes a problem you have or adds support for new hardware you want to use.  

But, in this case based on what the update does I say you should do it. 

Fixes & Enhancements

Is there a way I could restore my computer to before the update if something goes wrong? I tell you the Dell people are making me nervous at Facebook talking about Motherboard damage and all that.