Received a call x 2 from this number by a middle eastern man named "Brad" "just letting you know that your computer is having critical errors". I didn't feel right about this call and abruptly ended it.

Received many calls from this number by someone stating  "just letting you know that microsoft is reporting that your computer is having critical errors". I am going to block the calls

Recieved a call from Diego or Biego still unsure even after asking for the spelling. He said something about me being hacked. Asked how many computers I own and where are they. He said he works for Global Support from the windows sector. I ask for his ID number he gives me1309. His 1(234)567-891 actually came up from Salem Ohio. I asked for a telephone number and he's replies I will call you back in three hours.