Win HDD is a fake Defragmenter tool (rogue) from the same family as: Check Disk, Ultra Defragger, Quick Defragmenter, HDD Defragmenter, System Defragmenter
Win HDD displays a lot of disturbing disks errors messages, prevent softwares execution pushing users to purchase a license.
To register (and help removal), copy paste this code: 0973467457475070215340537432225
Click on Help & Support button.
Thanks to XyliBox.