Criticism of Windows Vista soon picked up by international media outlets: "Jornal de Notícias", Rádio e Televisão de Portugal, "La Nación", "The Chosun Ilbo", and 163.com. Criticism of Windows Vista Windows Vista, an operating system released by Microsoft for consumers on January 30, 2007, has been widely criticized by reviewers and users. Due to issues with new security features, performance, driver support and product activation, Windows Vista has been the subject of a number of negative assessments by various groups. For security reasons, 64-bit versions of Windows Vista (and of Windows 7 as well) allow only signed drivers to be installed in kernel mode.
Windows Vista even though Direct3D 11 runtime will be able to run on D3D9-class hardware and WDDM drivers using "feature levels" first introduced in Direct3D 10.1, Desktop Window Manager has not been updated to use Direct3D 10.1. In July 2011, Microsoft released Platform Update Supplement for Windows Vista and Windows Server 2008, which contains several bug fixes and performance improvements. In July 2008, Microsoft introduced a web-based advertising campaign called the "Mojave Experiment", that depicts a group of people who are asked to evaluate the newest operating system from Microsoft, calling it Windows 'Mojave'. Participants are first asked about Vista, if they