To answer your questions more directly: ConfigureAwait(true): Runs the rest of the code on the same thread the code before the await was run on. Not necessarily the same thread, but the same synchronization context. The synchronization context can decide how to run the code. In a UI application, it will be the same thread. … Read more
true to attempt to marshal the continuation back to the original context captured; otherwise, false. It’s actually more like saying that ConfigureAwait(true) is like using .ContinueWith( t => {…}, TaskScheduler.FromCurrentSynchronizationContext()), where ConfigureAwait(false) is like using .ContinueWith( t => {…}). If you pass false, then the continuation is being allowed to run on a thread-pool thread … Read more