Remove malware from your Windows PC - Microsoft Support
Open your Windows Security settings. Select Virus & threat protection > Protection history. The Microsoft Defender Offline scan will automatically detect and remove or quarantine malware. Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.
Applies To:
OneDrive (home or personal), OneDrive for Windows
IFERROR function - Microsoft Support
Examples. Copy the example data in the following table, and paste it in cell A1 of a new Excel worksheet. For formulas to show results, select them, press F2, and then press Enter.
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016, Excel Web App
修正 Windows 中的印表機連線與列印問題 - Microsoft 支援服務
開始之前. 首先執行 [取得協助] 應用程式中的自動印表機疑難排解員。. [取得協助] 會自動執行診斷，並採取正確步驟修正大多數印表機的問題。. 步驟 1. 拔除插頭並重新啟動印表機. 步驟 2. 檢查纜線或無線連線. 步驟 3. 解除安裝並重新安裝您的印表機.
Windows 11 System Requirements - Microsoft Support
RAM: 4 GB. If your PC has less than 4GB of memory, there are sometimes options for upgrading to get additional RAM. You may want to consult your PC manufacturer’s website or with a retailer to see if there are easy and affordable options to meet the minimum requirements for Windows 11. Storage: 64 GB or larger storage device.
MATCH 函数 - Microsoft 支持
使用 MATCH 函数在 范围 单元格中搜索特定的项，然后返回该项在此区域中的相对位置。. 例如，如果 A1:A3 区域中包含值 5、25 和 38，那么公式 =MATCH (25,A1:A3,0) 返回数字 2，因为 25 是该区域中的第二项。. 提示: 当您需要项目在区域中的位置而非项目本身时，使用 ...
Applies To:
Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Nachschlagen von Werten mit SVERWEIS, INDEX oder VERGLEICH
Hinweis: Der Nachschlage-Assistent ist in Excel nicht mehr verfügbar. Hier sehen Sie ein Beispiel für die Verwendung von SVERWEIS. =SVERWEIS (B2;C2:E7;3;WAHR) In diesem Beispiel ist B2 das erste Argument – ein Datenelement, das die Funktion verwenden muss. Für SVERWEIS ist dieses erste Argument der Wert, den Sie suchen möchten.
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
安装 Windows 7 Service Pack 1 (SP1) - Microsoft 支持
安装 Windows 7 Service Pack 1 (SP1) Windows 7 支持已于 2020 年 1 月 14 日结束。. 我们建议你转到 Windows 11 电脑来继续从 Microsoft 接收安全更新。. 获取 SP1的推荐（并且最简单）方法是在“控制面板”中的“Windows 更新”中打开自动更新，然后等待 Windows 7 通知你 SP1 已准备 ...
Finding your BitLocker recovery key in Windows - Microsoft Support
In a work or school account: If your device was ever signed into an organization using a work or school email account, your recovery key may be stored in that organization's Azure AD account. You may be able to access it directly or you may need to contact the IT support for that organization to access your recovery key.
在邮件应用中设置电子邮件 - Microsoft 支持
添加新的电子邮件帐户. 选择 “开始” ，输入 “邮件 ”，然后从结果中选择应用。. 如果这是首次打开邮件应用，将看到欢迎页面。. 若要开始使用，请选择“ 添加帐户 ”。. 如果已在左侧导航窗格底部使用了邮件应用，请选择“ 设置 ” ，然后选择“ 管理 ...
Applies To:
Mail for Windows 10, Outlook Mail for Windows 10
Getting ready for the Windows 11 upgrade - Microsoft Support
To check if Windows 11 is ready for your device, go to Start > Settings > Update & Security > Windows Update and select Check for updates. If the upgrade is available for your device and you want to proceed, download and install it. Note: Downloading and installing Windows 11 will most likely take longer than a typical Windows 10 feature update.