The Windows PCs at Microsoft's first retail stores are deliberately purged of the third-party apps they would normally carry, employees and eyewitnesses have confirmed. Product Advisor Jared Marino explains these systems, regardless of the brand, are considered Signature PCs and won't include any unnecessary third-party software. In exchange, they come preloaded with the normally optional Windows Live Essentials pack as well as extras like Bing 3D Maps, Security Essentials and the Zune client.