Microsoft is changing the default way Windows works with external drives.
Currently, Windows has 2 ways of dealing with the process of writing data to external drives such as Thumb Drives: Quick removal and Better performance.
Quick removal:
This policy manages storage operations in a manner that keeps the device ready to remove at any time. You can remove the device without using the Safely Remove Hardware process. However, to do this, Windows cannot cache disk write operations. This may degrade system performance.