This is a scam caller that their ultimate aim is to get into your computer with the intent of installing a virus then claiming they need to remove it .... of course at a price. They will even have you check registers, before you let them in, to prove to you that there is something wrong. Do not let them in to your computer. Most of them sound like they are from India.
When they identify themselves as Windows technical support I would just hang up.
Again, it is a scam. Claims to be from the Windows Support. They are learning and adapting. They try to get you to access you computer on the premise that you already have a virus. They even hand you off to a supervisor if they get frustrated. Not too smart. All indian. Do NOT touch your computer under the direction.