You're attempting to copy or move an important file on your Windows PC when, suddenly, a cryptic error message appears—'Error 0x800701b1: A device that does not exist was specified.' Frustrating, isn't it? In fact, you've probably encountered this error more than once. However, fear not! In this post, we're here to help you understand why this happens and how to effortlessly fix error code 0x800701b1.