Recovery confusion UEFI or Legacy

My wife has an Aspire V-5 431 that she blew up a year ago. Not a common model, the model was built for Amazon to distribute to employees, they changed their minds and sold them all on Woot. I bought two and have been really happy with them.

The machine came with Win 8 on it and was working great till she killed it. She gave it to a friend, instead of telling me (argh), to fix and they put win 7 pro on it. Not what I wanted, but what they did. She let the kids use it and now it is so infected that I just want to start over from scratch.

I ordered the recovery discs from Acer and now I have a problem.

When I put the system disc in and try to boot from the disc the first thing that happens is I get an error that the recovery process must be run in UEFI mode and the process stops. 

I go in and change to UEFI from Legacy, start process over.

Now I get to the screen to select a language, Engilsh, then the recovery menu comes up asking if I want to reinstall the OS or do a complete reset to factory settings. 

Regardless of which option I choose, I get a message telling me that this process must be run in Legacy mode. I am frustrated and perplexed.

Does this have to do with the OS on the machine not being the origianl? I really don't know. I consider myself pretty tech savy, but this seems to be above my level. If anyone can offer some help I'd be very grateful. 

Thanks, Joe