If you launch Winclone and do not see any Boot Camp sources, you can try the following items to resolve the issue.
1. Open Disk Utility and verify the boot camp shows up. If it does, make sure it is mounted. If not, click the “Mount” button:
2. If the volume is mounted, click the (i) in Disk Utility and verify that it is NTFS:
3. Finally, open the Boot Camp partition in the Finder and verify that you can see files and folders and that there is a Windows folder: