Is Task.Factory.StartNew() guaranteed to create at least one new thread?

Question

I understand that the TPL does not necessarily create a new thread for every task in a parallel set, but does it always create at least one? eg:

private void MyF         


        

Answer 1

In short: Yes, this is guranteed.

Longer: If StartNew() does not create a new thread, it will reuse another: Either by it being free, or by queueing.