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Obtain a digital certificate and create a digital signature
This article explains how you can get or create a digital signature for use in Office documents. To learn more about how to use them in Office documents, see Add or remove a digital signature in Office files.. What is a digital signature?
适用于: Microsoft 365 专属 Excel, Microsoft 365 专属 Word, Microsoft 365 专属 Outlook, Microsoft 365 专属 PowerPoint, Word 2021, Word 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Office 2016, Excel 2013, Word 2013, Outlook 2013, PowerPoint 2013, Office 2013
Use the System File Checker tool to repair missing or corrupted system ...
Swipe in from the right edge of the screen, and then tap Search.Or, if you are using a mouse, point to the lower-right corner of the screen, and then click Search.Type Command Prompt in the Search box, right-click Command Prompt, and then click Run as administrator.If you are prompted for an administrator password or for a confirmation, type the password, or click Allow.
Disk cleanup in Windows - Microsoft Support
Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.
Global Customer Service phone numbers - Microsoft Support
Country/Region. Country/Region code. Phone number. Language. Australia. N/A. 13 20 58. English. New Zealand. N/A +64. 0800 800 004 9 368 5680. English
Outlook.com に対してサインインまたはサインアウトする方法 ...
Outlook.com でサポートを受けるには、ここ をクリックするか、メニュー バーの [ヘルプ] を選択してクエリを入力します。 セルフヘルプで問題が解決しない場合は、[さらにヘルプが必要ですか?] まで下にスクロールし、[はい] を選択します。 Outlook.com でお問い合わせいただくには、サインイン ...
适用于: Outlook.com
Find your Windows product key - Microsoft Support
Learn how to find your Windows product key for activation or when to use a digital license instead.
适用于: Microsoft 帐户仪表板
全球客户服务电话号码 - Microsoft 支持
国家/地区 国家/地区代码 电话号码 语言 阿根廷 +54 +54 11 6076 0010(大布宜诺斯艾利斯) 11 6076 0011(大布宜诺斯艾利斯) 0 800 222 9467 西班牙语 玻利维亚 不适用
Switch to the new Microsoft Teams - Microsoft Support
As of October 5, 2023, the new Microsoft Teams app for Windows and Mac is generally available. The new Teams is also in public preview for Virtual Desktop Infrastructure (VDI) and government cloud customers. Features and enhancements to Microsoft Teams will be available exclusively in the new Teams. If you're still using classic Teams, you will ...
适用于: Microsoft Teams
Contact - Microsoft Support
Get in touch with Microsoft Support for assistance with Microsoft products and services.
Change screen brightness in Windows - Microsoft Support
If you don't have a desktop PC and the slider doesn't appear or work, try updating the display driver. Select Search on the taskbar, type Device Manager, and then select Device Manager from the list of results.In Device Manager, select Display adapters, then select the display adapter.Press and hold (or right-click) the display adapter name, then select Update driver and follow the instructions.