Back up your Windows PC - Microsoft Support
First, launch Windows Backup: select Start , type windows backup, and select Windows Backup from the results. (Or you can select Start > All apps > Windows Backup .) Then select Folders to drop it down, and select which of your user folders you want to back up to OneDrive: You can back up your Desktop, Documents, Pictures, Videos, and Music ...
如何在 Windows 中设置和测试麦克风 - Microsoft 支持
请确保麦克风已连接到电脑。. 选择 "开始 >设置> 系统 > 声音"。. 在 " 输入"中，选择要测试的麦克风。. 在 "输入设置 "中，查看 对 着麦克风说话时输入音量。. 如果在说话时移动栏，则你的麦克风将正常工作。. 如果未看到栏移动，请转到测试 麦克风， 然后 ...
修复麦克风问题 - Microsoft 支持
麦克风音量过低或似乎完全无法工作. 请尝试以下解决方案：. 确保麦克风或耳机已正确连接到计算机。. 确保麦克风摆放在正确的位置。. 提高麦克风音量。. 下面将了解如何在Windows 11：. 选择 "开始>设置>系统 > 声音"。. 在 "输入 "中，选择麦克风以查看其属性 ...
Manage your Microsoft 365 subscription or Office product
Follow the prompts to install or reinstall the desktop apps. For Microsoft 365 Family or Personal subscriptions: Select Install premium Microsoft 365 apps and follow the prompts to install or reinstall the desktop apps. On the Microsoft 365 subscription tab, select Manage. From here you can: Renew your subscription with a prepaid code or card.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Word for the web, OneNote for the web, PowerPoint for the web, Excel 2021, Word 2021, Outlook 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, PowerPoint 2019 for Mac, OneNote 2019 for Mac, Office 2019 for Mac, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016, Microsoft 365 admin, Outlook on the web, Word Web App, Microsoft account dashboard, New Outlook for Windows
Download the new Microsoft Edge based on Chromium
The new Microsoft Edge is based on Chromium and was released on January 15, 2020. It is compatible with all supported versions of Windows, and macOS. With speed, performance, best in class compatibility for websites and extensions, and built-in privacy and security features, it's the only browser you'll ever need. Try the new Microsoft Edge now.
Secure messages by using a digital signature - Microsoft Support
In the message, on the Options tab, in the Permission group, click Sign Message. In the message, click Options. In the More Options group, click the dialog box launcher in the lower-right corner. Click Security Settings, and then select the Add digital signature to this message check box. Click OK, and then click Close.
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
OneDrive に格納されている以前のバージョンのファイルを復元する
個人の Microsoft アカウントまたは職場または学校アカウントでOneDrive にサインインします。. 以前のバージョンに復元するファイル (一度に復元できるファイルは 1 つだけ) を選択し、右クリックして [ バージョン履歴] を選択します。. 注: クラシック ビュー ...
Applies To:
OneDrive for Business, SharePoint Server Subscription Edition, SharePoint Server 2019, SharePoint Server 2016, SharePoint Server 2013 Enterprise, OneDrive (work or school), OneDrive (home or personal), OneDrive for Mac, OneDrive for Windows
Outlook for Windows にメール アカウントを追加する - Microsoft サポート
Outlook でパスワードを受け付けられない. Microsoft アカウントのパスワードを忘れた場合は、 サインイン ヘルパー を使用してアカウントに戻ります。 メール アカウントに正しいパスワードを使用しているのに Outlook がそれを受け入れないことがわかっている場合は、追加のセキュリティが必要 ...
Applies To:
Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Office for business, Microsoft 365 admin, New Outlook for Windows
Find your Windows product key - Microsoft Support
Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...
Applies To:
Microsoft account dashboard
Download drivers and firmware for Surface - Microsoft Support
To find the link for the driver you need, select the dropdown list below and then scroll through it to find the type of Surface you have. After you've selected it, you'll see the available links for that type of Surface device model. Select the link for your model to get the latest firmware and drivers for sound, display, ethernet, and Wi-Fi.