Some days ago, I received an E-mail in which someone had threatened me to publish my personal media files in social media groups. The title of the E-mail was my desktop password. This scammer told me that he now knows my password and has access to my computer and all my personal pictures and videos. Fortunately, I don't store my personal info on my PC and use an external hard drive for this kind of information. The E-mail contains a bitcoin wallet address and the scammer has asked me to send $500 worth of bitcoin to his wallet to forget about revealing my personal info on the web. I changed my password immediately after reading this E-mail and switched to normal user from admin to block everyone's access to the vital program files in my PC. I have never received such an E-mail before and I don't know how this scammer has managed to find my password. Maybe I visited a website that contained malware. My antivirus and anti-malware are always on. Anyway, what do you recommend me to do at this moment?