A Microsoft file hosting and synchronization service.
Hi,
Thank you for reaching out. Here's additional solutions you can try that go beyond the ones that are listed.
If OneDrive is running, macOS may think the folder is "in use" and block deletion, so the easiest fix is to fully quit it first. Click the OneDrive cloud icon in the top menu bar, select the gear, then choose Quit OneDrive. To be safe, open Activity Monitor and search for OneDrive, OneDrive Finder Integration, and OneDrive Updater, then force-quit anything still running. Once OneDrive is completely closed, try deleting the folder again.
Hope that these help, and let me know if you need further assistance or have questions. You can leave a comment below.
Thank you,