To remove a mapped drive in Windows 10, using Windows File Explorer right click on the mapped drive and select Disconnect.
What My Cloud model do you have? Generally this subforum is for the single bay My Cloud units. If you have a EX2100 there is a separate subforum where people familiar with the EX2100 may be able to help.
https://community.wd.com/c/network-attached-storage/my-cloud-expert-series
If Windows 10 isn’t seeing the My Cloud in Windows File explorer then check to ensure NetBIOS over TCP/IP is enabled within Windows, also ensure the network is set to Private not Public. How to check both are explained in the following thread:
https://community.wd.com/t/compilation-of-windows-10-methods-steps-and-solutions/142576
When mapping the My Cloud you generally navigate to a specific Share on the My Cloud that you select and then map.
A 4 second My Cloud reset will reset the administrator password to default (blank) and the DHCP setting to Auto.
