If a banner appears on the screen with a demand that you send a text message to a specified phone number, it means that your computer is infected with ransom malware. Such malware are created to block access to a computer or restrict access to some functions and request a ransom to restore computer functionality.
In order to fight ransomware, Kaspersky Lab engineers designed a special utility named Kaspersky WindowsUnlocker. The utility can be launched when your computer is loaded from Kaspersky Rescue Disk 10 and allows you to work in graphic and text modes of Kaspersky Rescue Disk.
To protect your computer from ransomware, download and install Kaspersky Internet Security 2016. The application provides high-level protection against ransomware.
Functions of Kaspersky WindowsUnlocker
The Kaspersky WindowsUnlocker utility is designed to disinfect registries of all operating systems installed on the computer (including operating systems installed on different partitions or in different folders on one partition) and disinfect user registry trees. Kaspersky WindowsUnlocker does not perform any actions with files (in order to disinfect files you can use Kaspersky Rescue Disk).
Homepage
Product Page (get help here)
https://support.kaspersky.com/us/viruses/disinfection/8005#block2
Download
http://rescuedisk.kaspersky-labs.com/rescuedisk/updatable/kav_rescue_10.iso