Issues that are fixed in this update. The following issues are fixed for .NET Framework 4.7.2. SQL Server (SQL) Fixes an issue in which the .NET Framework API SqlConnection.ConnectionString property is used to set a null or empty connection string. In this situation, a Null Reference Exception (NRE) occurs when you use the API together with .NET Framework 4.7.2.

Windows 允許新增多個用戶帳戶來使用相同的裝置，讓每個使用者都有自己的設定、檔和應用程式。 例如，家長可以擁有自己的帳戶，並擁有管理設定和安裝軟體的系統管理許可權，而子女可以擁有標準帳戶，並啟用家長監護來監控及限制其使用量。

Choose number of pages to print per sheet: Printing multiple pages on a single sheet of paper is a useful technique to save paper, reduce printing costs, and create compact versions of your documents. The number of pages that can be printed on a single sheet depends on the capabilities of your printer and the printing options you choose (Example: 1, 2, 4, 6, 9 or 16 pages per sheet).

If the self-help answers don't resolve your issue, try a different search, or scroll to the bottom of the Help pane and, under Still need help?, select Yes.

In Sound settings, go to Input to see your connected microphones. If it's a Bluetooth microphone, select Add device.

解决安装 Windows SP1 时遇到的问题. 如果你尝试安装 SP1 并看到指示安装未成功的错误消息，这可能是因为用于安装更新的 Windows 维护服务商店出现问题，或者是因为你的防病毒软件阻止安装更新。

Add people from your address book or contacts list, and choose OK.To select multiple people, hold down the Ctrl key as you choose members.

If pressing the Connect button in action center doesn't find your device in Windows 10, here are some things to try:. Check action center to see if your Windows device supports Bluetooth. If it does, there'll be a Bluetooth button in action center. Make sure it's turned on.

isp pop3 (受信) メール サーバーに最初に接続するように要求する 新しいメール メッセージを取得するとき、通常、pop3 (受信) メール サーバーに接続します。メールボックスにアクセスするために、ユーザー名とパスワードの入力が要求されます。

To upgrade to Windows 11, you need enough space on your hard drive for the installation to take place. To view how much hard drive space is available on your computer, select File Explorer on the taskbar (known as Windows Explorer in Windows 7) or press Windows logo key + E. Then select Computer or This PC and look under Hard Disk Drives or under Devices and drives.