> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://palantir.crisp.help/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# 鴻蒙系統無法安裝第三方APK

在鴻蒙操作系統3.0或4.0版本中，您可以通過設置進入純淨模式，關閉增強防護。關閉後，您可以安裝第三方APK。

![](https://storage.crisp.chat/users/helpdesk/website/a7b1c6115f6fd000/image_16kir63.png)