#3.Windows Phone

Windows Phone is a Smartphone, its operating system developed by Microsoft. It is the successor to Windows Mobile, although it is incompatible with the earlier platform. Windows Phone is failing, because of various reasons. Sales have gone down with 7.4 million Windows phones shipped in the second quarter of this year. Windows Phone has less apps and consumers prefer iPhones and Androids over it.

#4.Clippy

Clippit, better known as Clippy, is the default animated character in the English Windows version of Microsoft Office Assistant. It pops up when the user needs assistance with using Office wizards, searching, or advising users on using Office features more effectively. It presents tips and keyboard shortcuts. For example, typing an address followed by "Dear" would cause Clippit to pop up and say, "It looks like you're writing a letter. Would you like help?

While Clippy was intended to be helpful, it was widely regarded as a failure by many users and drew criticism from customers and even Microsoft employees.  Microsoft finally killed off Clippy in 2007.

#5.HD DVD

HD DVD was one of the two formats for high definition DVDs. The other format was Blue Ray. When HD DVD was first launched, it had a sales lead over Blue Ray. Families with children wanted access to Disney movies, but HD-DVD didn't have it. Warner Brothers basically killed the HD DVD when they decided they would be releasing all of their films and television programs exclusively on Blue Ray. The company even offered to replace HD DVD titles with Blue Ray for a small shipping and handling fee.

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