For the last two days I've been called, with the message that my windows license key has expired.
Similar to this.
What is ironic, I don't have any computers with windows.
All of mine are on Linux!
The number called from is 800-538-3888.
I called the number back and got an indian sounding guy.
I told him to take my number off his list and to quit calling!
He hung up on me! Which is fitting, I hung up on him earlier!