Microsoft will never proactively reach out to you to provide unsolicited PC or technical support. If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your "issue" fixed, it's better to be safe and not click any links or provide any personal information.

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 It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired.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

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To create an e-sign request, you’ll need to sign into your account with an available e-signature provider such as Adobe Sign or DocuSign. If you don't have account, it's easy to start a free trial or create an account. Choose the e-signature provider you'll use to create, send, and manage e-sign requests.

Xbox 免費遊戲日是 Xbox Game Pass Ultimate、進階版和基礎版訂閱者所獨享。 透過 Xbox 免費遊戲日，您可以免費遊玩精選、完整功能的、熱門的遊戲。

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

Xbox Game Pass 訂閱者可獲得哪個版本的 EA Play - EA Play 或 EA Play Pro？ Xbox Game Pass Ultimate 和 PC 版 Game Pass 訂閱者獲得的是 EA Play 版本。 EA Play Pro 目前僅可透過 EA 的電腦平台、Origin 和 EA 應用程式取得。

Microsoft account sign-in helper If you can't sign into your Microsoft account, use the sign-in helper to identify the problem. How to use the Microsoft account sign-in helper The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide. If it detects a problem with your account, we'll tell you what you need to do to ...

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