> 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/v20-zh-tw/parallels-desktop-for-mac-20-shi-yong-zhi-nan/an-zhuang-huo-sheng-ji-parallels-desktop/gou-mai-parallels-desktop.md).

# 購買 Parallels Desktop

如果您正使用 Parallels Desktop 試用版本，可以直接從應用程式介面購買正式版本。要實現此目的：

1. 在「**關於 Parallels Desktop**」視窗中或在促銷時按一下「**購買**」。
2. 選擇以下其中一種：
   * **升級：**選擇該選項可以升級 Parallels Desktop 當前版本。但是請記住您將需要舊版本的啟用金鑰。如果依預設選取了「**升級**」選項，Parallels Desktop 便已自動偵測到舊版的金鑰。若非如此，請確定您有舊版的金鑰。
   * **購買完整版本：**如果您從未使用過，請選擇此選項購買 Parallels Desktop。
3. 請根據螢幕上的說明進行操作。您可能需要向下捲視查看所有資訊。


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