I put a second deluxe in my pc to complete my family taxes and I can not e-file may taxes because says I passed the limited what I may do?"

Only ONE copy of the software can exist  on the machine. IRS limits to five the total number of returns that may be filed form one machine.

Install on another machine, in your home , and you should be able to e-file another five  ( it may ask for another e-mail address though ) 

You can paper-file as many as you like without hitting the limit

Let us know if you get more files by installing it on another computer in your house.  I think it also goes by the IP address which might be for your router or modem.  Not just your email address.