This article has guidance for: IT administrators who need visibility into Secure Boot certificate update status from their Intune enrolled Windows devices Organizations preparing for the June 2026 Secure Boot certificate expiration deadline Teams that want to monitor certificate rollout progress across their Intune enrolled Windows devices In this article: Introduction Prerequisites Detection ...

This article has guidance for: Azure Virtual Desktop administrators managing session host updates Organizations using Secure Boot enabled VMs for Azure Virtual Desktop deployments Organizations using custom images (golden images) for Azure Virtual Desktop deployments

Summary The /INTEGRITYCHECK linker option provides Windows kernel digital signature verification for user mode Portable Executables (PE) files. This linker option is required for anti-malware and anti-cheat scenarios to register components with the Windows Security Center. You must sign IntegrityCheck-linked user mode PEs using Trusted Signing (formerly Azure Code Signing). The cross-signing ...

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所有版本的 Windows 11本机都支持用户模式 PE 文件的受信任签名。 从下面列出的版本开始，其他客户端和服务器产品中提供了对受信任签名的支持。 注释 下表中列出的更新可能会因特定原因而过期或撤销。

Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...

它的工作原理是针对存储在设备固件中的一组受信任的数字证书 (（也称为证书颁发机构或 CA) ）验证预启动软件的数字签名。 作为行业标准，UEFI 安全启动定义了平台固件如何管理证书、对固件进行身份验证，以及作系统 (作系统) 如何与此过程交互。

Want to add a padlock to your email messages? You can use encryption and digital signatures in new Outlook, classic Outlook, and Outlook on the web for work or school accounts to increase the security of messages. Encrypting an email message in Outlook means it's converted from readable plain text into scrambled cipher text. Only the recipient who has the private key that matches the public ...

Microsoft Customer Support resources To contact Microsoft Support, see: Microsoft Support and then click Windows. Support for business and then click Create to create a new support request. After you create the new support request, it should look like the following:

防止用户意外更改宏项目和使签名失效的一种方法是在应用签名之前锁定宏项目。 数字签名可确保项目自你签名后未被篡改，但无法证明你编写了该项目。 即使你已锁定宏项目，其他用户仍可能能够将你的签名替换为另一个签名。