Now that this bug has been solved (it only took MS almost 3 months to solve), my question is: Why a unified search? what is the advantage and why complicate straightforward and simple things?
In my humble opinion, File Explorer - as the name 'used' to suggest - is for local files and folders while Internet Explorer was for internet-related searches; Simple, straightforward and easy... No salad, no mess and no confusion.
The only explanation for this useless integration is to gain points for "Bing", which people either hate or simply don't use.