Windows 10 9926 Connecting to a Network Folder

Posting this here partially so I can find it, as well as others possibly. 


The recent build of Windows 10 automatically refuses connecting to ANY network folders, which is lame.


so, I found a fix:


Using REGEDIT it's necessary to create a DWORD value called 'AllowInsecureGuestAuth' in HKLM\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters and set this new value to 1.