Pureinfotech Forums

Does Windows 10 1909 require full reinstallation to upgrade from version 1903?

Best answer: No, if you’re already running the Windows 10 May 2019 Update, version 1903, then version 1909 will download and install as a mostly update that doesn’t require full reinstallation of the OS as long as you use Windows Update. However, if you’re running the October 2018 Update or earlier release, then upgrading to version 1909 (October 2019 Update) will require full reinstallation.