如果您在VirtualBox上安装了操作系统，您可能会遇到VirtualBox屏幕太小的问题。在这篇文章中，我们将向您展示how to make the VirtualBox VM full screen in Windows 11/10。默认情况下，VirtualBox以窗口模式显示已安装的操作系统。即使您最大化虚拟机^{(Virtual Machine)}，您也无法在全屏模式下访问它。

查看^(View)菜单中提供的全屏模式^{(Full-screen mode)}选项。但在使用此功能之前，您必须对VirtualBox应用一些设置。如果您直接使用此模式，您将在中间屏幕中看到带有黑色边界的虚拟机^{(Virtual Machine)}，如下面的屏幕截图所示。

如何在Windows 11/10VirtualBox VM全屏

要在Windows 10中使^{(Windows 10)}VirtualBox VM全屏显示，您必须在虚拟机^{(Virtual Machine)}上安装VirtualBox Guest Additions。按照下面列出的步骤进行安装。

1] 在VirtualBox^(VirtualBox)中启动虚拟机^(Machine)（已安装的操作系统）后，转到“Devices > Insert Guest Additions CD image”。

阅读^(Read)：VirtualBox 无法为虚拟机打开会话^{(VirtualBox Failed to open a session for the virtual machine)}。

2]现在，在虚拟机中打开^{(Virtual Machine)}文件资源管理器^{(File Explorer)}并转到这台电脑。在那里你会找到“ CD Drive (D): VirtualBox Guest Additions ”。双击打开它。

3]当你打开它时，你会看到三个应用程序。您必须安装主机系统架构支持的应用程序。

首先，我尝试安装“ VBoxWindowsAdditions-amd64 ” VBox Guest Addition，但收到错误提示我的系统架构不支持安装此文件。

之后，我尝试安装“ VBoxWindowsAdditions-x86 ” VBox Guest Addition，它成功了。因此^(Hence)，如果您在安装 amd64 VB Guest Addition时遇到任何错误，请尝试安装另一个。

阅读^(Read)：VirtualBox 注册和打开硬盘镜像文件失败^{(VirtualBox failed to register and open Hard Disk image file)}。

4]安装完成后，重新启动虚拟机^{(Virtual Machine)}。为此，只需单击Finish。您无需重新启动主机或主 Windows 10 操作系统。重新启动后，转到“View > Full-screen mode”，您将获得全屏模式的虚拟^(Virtual)机。

这就是关于如何在Windows 10中使^{(Windows 10)}VirtualBox VM全屏显示的全部内容。希望这篇文章能帮助您解决问题。

可能对您有所帮助的相关链接：^{(Related links that may help you:)}

• VirtualBox error: VT-X/AMD-V hardware acceleration is not available。
• VirtualBox 显示 Black screen 而不是 Booting guest OS^{(VirtualBox displays Black screen and not Booting guest OS)}。

How to make VirtualBox VM full screen in Windows 11/10

If you have installed an operating system on VirtualBox, you might have faced an issuе where the VirtualBox screen is too small. In this post, we will show you how to make the VirtualBox VM full screen in Windows 11/10. By default, VirtualBox displays the installed operating system in a window mode. Even if you maximize the Virtual Machine, you will not be able to access it in full-screen mode.

The Full-screen mode option available in the View menu. But before using this feature, you have to apply some settings to the VirtualBox. If you use this mode directly, you will get the Virtual Machine in the middle screen with black boundaries as shown in the below screenshot.

How to make VirtualBox VM full screen in Windows 11/10

To make VirtualBox VM full screen in Windows 10, you have to install VirtualBox Guest Additions on the Virtual Machine. Follow the below-listed steps to install it.

1] After starting the Virtual Machine (installed OS) in VirtualBox, go to “Devices > Insert Guest Additions CD image.”

Read: VirtualBox Failed to open a session for the virtual machine.

2] Now, open the File Explorer in the Virtual Machine and go to This PC. There you will find the “CD Drive (D): VirtualBox Guest Additions.” Double-click to open it.

3] When you open it, you will see three applications. You have to install the application that is supported by your host system’s architecture.

First, I tried installing the “VBoxWindowsAdditions-amd64” VBox Guest Addition but received an error that my system’s architecture does not support the installation of this file.

After that, I tried installing the “VBoxWindowsAdditions-x86” VBox Guest Addition and it worked. Hence, if you get any error on installing amd64 VB Guest Addition, try installing another one.

Read: VirtualBox failed to register and open Hard Disk image file.

4] When the installation gets completed, restart the Virtual Machine. For this, simply click on Finish. You need not restart your host or main Windows 10 operating system. After a restart, go to “View > Full-screen mode” and you will get the Virtual machine in full-screen mode.

This is all about how you can make VirtualBox VM full screen in Windows 10. Hope this article helped you solve the issue.

Related links that may help you:

• VirtualBox error: VT-X/AMD-V hardware acceleration is not available.
• VirtualBox displays Black screen and not Booting guest OS.

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