Thanks for your feedback.
1 and 2 translation problem, we will improve it.
The folder "...." normally it was created by WFH v3, v4 won't use it again. Its properties is Hidden, just change your Folder View settings, then you won't see it again. If you still want to delete it, please email to firstname.lastname@example.org, the staff can help you.
The error message "Failed to load WiseFs.sys", normally you just need to restart system, then it will be registered automatically. If you have tied it, but it still didn't work, please registered it manually, or uninstall WFH, then reinstall it and reboot.