I can't log in to the Box Drive on Windows.

Hi Youp, 

Welcome to Box Community!

Can you try resetting Box Drive manually to determine if it solves the issue? Kindly follow the steps below.

To reset Box Drive on Windows

1. Exit Box Drive (if it is running). If necessary, use Task Manager to end the Box.exe process.
2. Ascertain whether any files exist in C:\users\[USERNAME]\AppData\Local\Box\Box\unsyncedFiles. These are files that have not been uploaded to Box. If these files do exist, and if you want to keep them, copy them to any location outside of C:\users\[USERNAME]\AppData\Local\Box\Box\ (such as your desktop). Proceeding with the steps below deletes these files.

• You may need to show hidden folders to see \AppData.

Reference: https://support.box.com/hc/en-us/articles/360043697494-Using-Box-Drive-Basics

Hope this helps. Thank you for posting!