I can not acces the Recovery folder, even after changing the option of show hidden files and folder and uncheck the option of hide system protected files. Here is a pic of what I can only see inside:

Is in Spanish, but in English it says :
Recovery partition Warning This area of the hard disk (or partition) contains the needed files to perform a system recovery. Do not delete or modify any of this files. Any change in this partition could prevent a system recovery in the future. So here is something wrong. But I will tell you the full story about why I want to recover my windows.
It happened that my sister came one day with the idea of upgrading the OS to Ultimate (I used to have Windows 7 Home Premium) as well as a friend told her it was possible. So, without advising me, she run the Windows Anytime Upgrade and wrote a key. Then the OS upgraded to Ultimate, without problem. Some weeks ago I was trying to download the Windows XP mode, but previously a genuine windows veryfication was needed to run. I clic OK and some seconds later appeared a window telling me my Windows version was illegal. Of course my sister doesn't know anything about it. Up to know I found some "ways" to be able to use the pc until I fiss this mess. So what I want to do is to run the recovery manager to stay with my ORIGINAL Windows 7 Home Premium. I'm not sure if it will work.
But even before this matter, when I have Windows Home Premium, I had looked inside the FACTORY_IMAGE and noticed that some folders were usually been modified. The Recicle bin, for example, that is inside there always has been modified.
It seems like if the system were doing backups of some things in that partition.
Here is a pic with the dates of creation and modification of the folders. Take a look of the one boxed in red:

Do you think I could recover my Windows 7 Home Premium if I use some way of recovery like the set of disks?
P.D.: I can not remember if I burn the disk after or before the change of my version of Windows.