让ie浏览器提示安装插件的步骤如下：
1.先从“开始‘菜单中打开“控制面板”，然后在“控制面板”中找到并打开“Internet选项”。
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2.在“Internet选项”窗口，先选择“安全”选项卡，然后再选择“Internet”此项，再点击“自定义级别”按钮。
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3.在安全设置区域，拖动右侧滚动条向下。找到“下载未签名的ActiveX控件”这一项，一般默认为“禁用”。
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4.要能安装无法验证发行者的插件，则要设置为“启用”或“提示”。选择后点“确定”。
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5.退出安全设置窗口后，返回到前一步，这时还要“确定”一下，设置就完成了，重启一下IE浏览器就可以了。这样就解决让ie浏览器提示安装插件的问题了。
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