Have you had your browsers redirect you to the search engine of Bing,
while your settings are actually set to another search engine?
If you have seen such suspicious activity,
then you most probably have your computer machine infected with
the Bing Redirect "Virus".

Visit the page above and read the article on how to deal with it.

Thanks for sharing the links. 
I will try these tools. Hopefully it will be helpful to recover my infected files.

If your files have an extension .bopador and Windows has named every one of them as a "BOPADOR FILE" than your computer system has been compromised and you have the Bopador Virus. The Bopador Virus is part of the STOP ransomware family and as such it is very dangerous. Usually a decryptor comes out for most versions after a week or two, but that isn't a guarantee that your files won't get encrypted again. You have to remove the ransomware cryptovirus with an anti-malware software. Read the article linked here to learn more about this threat and how you could remove it from your computer machine:

Remove Bopador Virus

If you have feedback or any questions, feel free to leave a post here, under this topic.

Hello there,
My almost all files have infected from the .crypt virus. Any solution to recover the files?

Thank you so much for the indeed, incredible concept to share with. I do admire the effort and will continue to learn from these forums.