To sync your OneDrive on your computer, you need to select a location that is formatted as New Technology File System (NTFS). See the OneDrive system requirements.
Check the file system of a drive
Open File Explorer.
Right-click the drive and choose Properties.
On the General tab, next to File system, see if it says NTFS.
Convert a FAT or FAT32 drive to NTFS
Converting a drive using these steps will preserve the files on the drive. We still recommend making sure you have backups of all files on the drive.
Find the letter of drive you want to convert. Open File Explorer, and in the left pane, look for the drive under "This PC" or "Computer."
Press the Windows logo key + R to open the Run dialog box.
Enter cmd to open the command prompt window.
At the command line prompt, type convert drive: /fs:ntfs
For example, if the letter of the drive you want to convert is e, you would type convert e: /fs:ntfs
Note: If you want to convert an NTFS drive back to FAT32, you need to save copies of any files you want to keep, and then reformat or partition the drive.