missing the said deadline.

Please note that as the MBR gets overwritten by the malware, it does not allow the system to restart in safe mode.

How to prevent the Petya ransomware?

If your system is affected by Petya Ransomware, never ever pay ransom to the attackers. Paying the ransom does not at all guarantee the retrieval of the encrypted data. And, extorting ransom from the victims is the main motivation of the attackers behind these attacks. Acceding to their demands will only worsen the situation.

There are a number of anti-malware programs that are providing solutions. Please make sure to take the help of those. Take regular backups of your system. You can always retrieve important files from the backup in case malware like ransomware infects the system. And please be careful about opening email attachments from unknown senders or downloading any software from untrusted sources.

I hope this helps. Interested readers who want to know more about how different malware and cyberattacks work and how we can prevent them may want to refer to the book “A Guide To Cyber Security.”