To reset NTFS Permissions in Windows 10, do the following.
Open an elevated command prompt.
Run the following command to reset permissions for a file: icacls "full path to your file" /reset.
To reset permissions for a folder: icacls "full path to the folder" /reset.
To reset permissions for a folder, its files, and subfolders, run the command icacls "full path to the folder" /reset /t /c /l.
Substitute the example paths with the actual values matching your system.