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The earliest versions of the Microsoft Windows operating system were really just applications that ran on top of the MS-DOS operating system. It has a relatively simple-but not overly "friendly"-user interface. DOS is a non-graphical line-oriented command-driven computer operating system. It is highly recommended that you upgrade to Windows 10 or 8.ĭOS (Disk Operating System) was the first widely-installed operating system for IBM-compatible personal computers.
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No further development will take place on these products and security updates are no longer issued. These products are no longer actively supported by Microsoft. If we are unable to resolve your Windows 9x/2000/XP/Vista issue, you may be able to find help in Microsoft's Knowledge Base.
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NOTE: Windows 95/98, Windows Me, Windows 2000, Windows XP, and Windows Vista are no longer supported by the Help Desk. Introduction to basic DOS command prompt use.
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