Windows 10 - Ver 1809
We currently use onedrive at work and there is a folder option in File Explorer to open OneDrive, however, when I single click it "OneDrive", all files for my OneDrive folder show in the original window but file explorer also opens a separate new window showing My Documents folder. Is there any to stop this from happening? I have checked through all of the File Explorer options and I can't figure how to fix it.
Any help would be greatly appreciated.

Thanks!!
Kay