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。

If this setting is enabled, only the V3 signature will be considered as valid when Office validates the digital signature in files. Earlier-format signatures in VBA files will be ignored.

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 It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.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 ...

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

Learn all about the Xbox Insider Hub app so you can preview games, apps, system updates, and new features.

Xbox PC App [2603.1001.17.0] Hey Xbox Insiders! We are releasing a new Xbox PC App for Windows build to users who are enrolled in the PC Gaming preview! Thank you all for being Xbox Insiders. Continue reading to learn about fixes and known issues. Make sure that you update the Xbox PC app, Gaming Services, and Game Bar to ensure you get all of the fixes!

If you have questions, complaints or claims with respect to the software, please contact the Microsoft affiliate serving your country: Microsoft office locations

Check the Xbox services, games, and apps for any service outages.

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To use Xbox Cloud Gaming on an Apple device, follow the steps below or watch the video: Video instructions For more information about cloud gaming and requirements, visit: How to use cloud gaming