I reinstalled XP, lost some programs, but now it is ok.
Broni, THANK YOU for your great support. It was not possible to recover without installation, but it was amazing trying it, and you showed to be of great help!!
Just to prevent in the future, do you recomend me any antivirus and combination of shield sw, such as Malwarebytes anti-malware?
Thanks again.
Regards.
Juako