Understanding different folders/locations

I’ve just got my My Cloud Home, and I’m a bit confused. On Windows 10 under ‘Network’ I have a device called ‘MYCLOUD-GNDXXX’, and under ‘This PC’ I have a folder ‘Jake’s My Cloud Home’ (which links to the same device). I’m trying to import content from an older My Cloud and this seems to be importing into ‘Jake’s My Cloud Home’ but not ‘MYCLOUD-GNDXXX’ which appears to have different content. How can the same device have completely different folder structure and content?

Thanks in advance for any help.