> For the complete documentation index, see [llms.txt](https://docs.parallels.com/landing/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.parallels.com/landing/pdfm-ug/v26-zh-tw/parallels-desktop-for-mac-26-shi-yong-zhi-nan/jin-jie-zhu-ti/shi-yong-xu-ni-ji-qi/she-ding-ke-ti-zuo-ye-xi-tong-lei-xing-yu-ban-ben.md).

# 設定客體作業系統類型與版本

您變更設定虛擬機器使用的作業系統。您可在以下情況進行變更：

* 如果您升級了客體作業系統 (例如，從 Windows 10 至 Windows 11)，您必須以相應方式變更客體作業系統類型和版本，否則 [Parallels Tools](/landing/pdfm-ug/v26-zh-tw/parallels-desktop-for-mac-26-shi-yong-zhi-nan/jin-jie-zhu-ti/an-zhuang-huo-geng-xin-parallels-tools.md) 可能會開始不正常運作。
* 如果您建立了一個虛擬機器而沒有安裝作業系統，可使用其他作業系統而不是最初指定的作業系統。

要設定虛擬機器作業系統類型與版本：

1. [關閉虛擬機器](/landing/pdfm-ug/v26-zh-tw/parallels-desktop-for-mac-26-shi-yong-zhi-nan/zai-mac-shang-shi-yong-windows/kai-shi-shi-yong/guan-bi-huo-zhong-zhi-windows.md)。
2. 開啟「**動作**」功能表並選取「**組態**」。
3. 按一下「**通用**」並從「**名稱**」欄位上的功能表選取一個作業系統。


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.parallels.com/landing/pdfm-ug/v26-zh-tw/parallels-desktop-for-mac-26-shi-yong-zhi-nan/jin-jie-zhu-ti/shi-yong-xu-ni-ji-qi/she-ding-ke-ti-zuo-ye-xi-tong-lei-xing-yu-ban-ben.md?ask=<question>&goal=<user_goal>
```

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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.