Thanks for your report. Please start a new thread and post more details. Is it only C: root? Or a whole drive? Do you get any error? Some screenshot may help too.
See attached screenshot:
1. On authentication, I see C:\Users\ directory that are not the directories of my user on this machine
2. I back up to C:\ root
3. And see a Users directory
4. Takes me back to the same users directory that is not my user on this machine
No errors resolve however it seems like Winscp does not have permission to access my user's directories on this machine? I am the admin of this machine and have never experienced this behavior on Winscp in the several years of usage of your product.
Thank you for your help!