Jesus, this is ridiculous. There are a couple simple steps to avoid all of this:
1.) Don’t surf for music, porn, or movies on a business computer.
2.) Backup your data, regularly….
3.) Accept your loses and tell the crypto-bastards to go fuck themselves. Format your shit, start over, learn your lesson and don’t let it happen again. You’re giving the fucktards incentive to continue their campaign if you pay them. Don’t ever give in. Cut off your nose to spite your face; it’s your fault you’re here anyways.