To change default hard drive from C: to D: in Windows 11/10, change the default save location for apps and files, move user ...

Officially, OneDrive doesn’t seem able to handle in-browser folder uploads. If you use Firefox or Internet Explorer to upload folders, you’ll get a message like the one you see at right.

Alternatively, you can type a file path address directly into the address bar of your browser and navigate to a file that way—use “C:” on a Windows box or “file:///Users/” on a Mac.