If the pre-upgrade and post-upgrade editions are not the same type (e.g. Windows N/KN: Windows 'N' and 'KN' SKUs (editions without media-related functionality) follow the same upgrade paths shown below. For example, if using a KMS, the command line would be setup.exe /pkey NPPR9-FWDCX-D2C8J-H872K-2YT43. The command line would be setup.exe /pkey xxxxx-xxxxx-xxxxx-xxxxx-xxxxx, using your relevant Windows 10 SAC product key.

If you don't use the switch the option 'Keep personal files and apps' will be grayed out. You will need to use the Product Key switch if you want to keep your apps. Upgrade is supported using the in-place upgrade process (using Windows setup). For example, Windows 10 Enterprise 2016 LTSB can be upgraded to Windows 10 Enterprise version 1607 or later. You can upgrade from Windows 10 LTSC to Windows 10 semi-annual channel, provided that you upgrade to the same or a newer build version. This was corrected in the Windows 10 LTSC 2016 release, which will now only allow data-only and clean install options. Note: Windows 10 LTSC 2015 did not block this upgrade path. In-place upgrade from Windows 7, Windows 8.1, or Windows 10 semi-annual channel to Windows 10 LTSC is not supported. See the Windows lifecycle fact sheet for availability and service information. Work with your account representative if your current version of Windows is out of support.

Windows 10 version upgrade: You can directly upgrade any semi-annual channel version of Windows 10 to a newer, supported semi-annual channel version of Windows 10, even if it involves skipping versions. Edition downgrade is also supported for some paths, but please note that applications and settings are not maintained when the Windows edition is downgraded. These methods require that you input a license or product key for the new Windows edition prior to starting the upgrade process. Methods and supported paths are described on this page to change the edition of Windows. If you are also migrating to a different edition of Windows, see Windows 10 edition upgrade. Migrating from one edition of Windows 10 to a different edition of the same release is also supported. This includes upgrading from one release of Windows 10 to later release of Windows 10. You can upgrade to Windows 10 from Windows 7 or a later operating system. This topic provides a summary of available upgrade paths to Windows 10.

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