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 NT startup process The installer can also be run from a MS-DOS command prompt so previous versions of Microsoft Windows that are already installed can be upgraded. To run the installer from a MS-DOS based operating system such as Windows 98 or Windows ME, the user must start the system "in DOS mode" and then execute I386/WINNT.EXE on the CD-ROM. A floppy disk containing MS-DOS can be used to start the installer. Versions of the installer in floppies were also available for sale. From Windows Vista onwards, the installer runs from BOOT.WIM which contains a bootable version of Windows PE. Windows PE 2.0