My name is Enna, I've been troubled with my child's desktop, this xp 2012 always block the screen and could not even allow entry into internet. I need a help please
Try to run your Anti Virus Scanner to detect / remove the infection.
If if will not run, boot into safe mode with networking and try again.
While there, download "Malwarebytes" Free scanner and run this also.
If you are lucky, between the two, the infection may be removed.