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40th anniversary of Windows.


November 22nd 2025 (language: English // Russian)

On November 20, 1985, Microsoft Corporation, founded six years earlier, released Windows 1.0.

The DOS add-on was officially announced by Bill Gates on November 10, 1983 in New York, but was released only 2 years and 10 days later.

This version of Windows was officially supported for 16 years and 1 month, which is the longest support period for the line of this operating system. At the same time, the last update for Windows 1.04 was released in 1987.

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