Hello how may I help you? I keep getting calls from someone saying they are from Microsoft Tech Support. Is this a scam? Have you recently called microsoft tech support? Yes. They say that unless I pay them $500 they will lock all the files on my computer. I don't have a Windows based system Oh no it appears you have been in contact with scammers I guess I shouldn't have called them back. What can I do? You can block the number. Okay I will block the number. The people calling you are definitely scammers take care in the future to protect yourself. Thanks for the help\ anytime!