Published August 2021. This article is intended for users who are not able to upgrade to Windows 11 because their PC is not currently Secure Boot capable.

Symptoms. When the operating system is in high-DPI mode, applications that use the Microsoft Foundation Classes (MFC) library of Microsoft Visual C++ 2013 may behave incorrectly.

Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. (Code 19)

This is a subscriber-only, Microsoft 365 feature. Find your version. Design ideas for one photo Applies to: PowerPoint for Microsoft 365 Current Channel: Version 1511 or later Semi-Annual Enterprise Channel: Version 1602 or later Multiple photos, color extraction, and facial recognition

Tip: If you're a Microsoft 365 Family or Personal subscriber you get Microsoft Defender, our advanced security software for Windows, Mac, iOS, and Android, as part of your subscription.Learn more at Getting started with Microsoft Defender.

Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features.

Add guests to a group. When you add guests, also known as external users, to a group, you're granting them access to all information within the group.

了解如何从 Windows 10 家庭版升级到 Windows 10 专业版或从 Windows 11 家庭版升级到 Windows 11 专业版，包括如何使用有效产品密钥或 Microsoft Store。

Si vous installez Windows sur un nouvel appareil ou une carte mère pour la première fois et que vous n’avez pas de clé de produit, sélectionnez Je n’ai pas de clé de produit pendant les écrans d’installation. À l’invite, entrez le compte Microsoft à utiliser pour acheter une licence numérique pour cet appareil.

Disable all macros except digitally signed macros This setting is the same as the Disable all macros with notification option, except that if the macro is digitally signed by a trusted publisher, the macro can run if you have already trusted the publisher. If you have not trusted the publisher, you are notified. That way, you can choose to enable those signed macros or trust the publisher.