Because Previews may contain more errors or inaccuracies, you should back-up your device before installing any Previews. In some instances, you may not be able to go back to your prior version of the Software.
To recover, you may have to reinstall your apps, the operating system or re-flash your device. In some instances, Previews may even inadvertently damage your device rendering it inoperable or cause occasional crashes, data loss or apps to stop working or be deleted. Previews are experimental, which means that Previews may not operate correctly and may be substantially different from the commercially released version. You may use Previews only up to the Software’s expiration date (if any) and so long as you comply with the applicable Windows License Terms.
Microsoft may make preview, insider, beta or other pre-release versions of the Software (“Previews”) available to you.