Anaconda安装sklearn报错PermissionError: [WinError 5] 拒绝访问。: ‘d:\anaconda3\lib\site-packages\numpy\c

anaconda版本3.几，Python版本3.6
安装代码：

pip install -U scikit-learn

下载好了各种安装包在最后一步报错：

PermissionError: [WinError 5] 拒绝访问。: 'd:\anaconda3\lib\site-packages\numpy\core\_multiarray_tests.cp36-win_amd64.pyd'

将安装代码改为：

pip install --user scikit-learn

安装成功：

Installing collected packages: joblib, threadpoolctl, numpy, scikit-learn
Successfully installed joblib-1.1.0 numpy-1.19.5 scikit-learn-0.24.2 threadpoolctl-3.0.0