Note on upgrading Win10's latest preview: you must first install the patch

  

Today, Microsoft officially pushed the latest preview version of Build 9926 to Win10 test users. This is a very powerful version, recommended upgrade.

If you are a Bulid 9879 user, here we want to remind you to install the KB3025380 patch first, otherwise you will not be able to upgrade.

This news comes from Gabe Aul, head of the Microsoft Windows Insider beta program. He said that Build 9879 must have the KB3025380 patch installed to get the Build 9926 update.

If you have ever opened an automatic update, this patch should already be installed because it was released last December.

If you have used a leaked version, you can only reinstall it with the full version of the image released today.

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