Acer aspire x3200

Hi
I have Acer Aspire X3200. I had vista but I have Windows 7 now, but I want my vista back and this is my question: How can I do that it and i can`t press everything+f10. (BTW) I have not deleted anything form vista I have a folder in applications where it is inn a map called "windows old"...

Help plz!!!
thank u

Go to Windows.old, look the program, Acer Empowering Technology > Acer eRecovery Management.

Manual how to use here:

ftp://ftp.support.acer-euro.com/notebook/empowering_technology/NB%20ET2%20user's%20guide/Acer%20eRecovery%20Management%20English.pdf