笔记本电脑win7系统打开网页有时自动弹出右键选项为什么?

重装去吧~~~

1中毒，2鼠标坏

可能是浏览器有问题，你换一个试试，推荐使用谷歌chrome，比IE和Edge都要好

家庭版的都没有，到控制面板里去看看

那你必须安装下载工具 直接监视浏览器

这个软件设置里自带了文件关联功能。你找一下。

请采纳，谢谢请将下列代码复制粘贴到文本文档，并另存为“.reg”文件，双击导入注册表，导入系统后即可成功添加“个性化”菜单。该注册表文件为微软官方提供可放心使用。
Windows Registry Editor Version 5.00
[HKEY_CLASSES_ROOT\DesktopBackground\Shell]
[HKEY_CLASSES_ROOT\DesktopBackground\Shell\DesktopIcons]
@="@%SystemRoot%\\System32\\desk.cpl,-112"
"Position"="Bottom"
"Icon"=hex(2):25,00,73,00,79,00,73,00,74,00,65,00,6d,00,72,00,6f,00,6f,00,74,\
00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,74,00,\
68,00,65,00,6d,00,65,00,63,00,70,00,6c,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,\
00,31,00,00,00
[HKEY_CLASSES_ROOT\DesktopBackground\Shell\DesktopIcons\command]
@=hex(2):22,00,25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,\
00,25,00,5c,00,73,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,\
75,00,6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,22,00,20,\
00,73,00,68,00,65,00,6c,00,6c,00,33,00,32,00,2e,00,64,00,6c,00,6c,00,2c,00,\
43,00,6f,00,6e,00,74,00,72,00,6f,00,6c,00,5f,00,52,00,75,00,6e,00,44,00,4c,\
00,4c,00,20,00,64,00,65,00,73,00,6b,00,2e,00,63,00,70,00,6c,00,2c,00,2c,00,\
30,00,00,00
[HKEY_CLASSES_ROOT\DesktopBackground\Shell\Display Peoperties]
@=hex(2):40,00,25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,\
00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,64,00,\
69,00,73,00,70,00,6c,00,61,00,79,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,39,\
00,00,00
"Icon"=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,\
00,25,00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,64,00,\
69,00,73,00,70,00,6c,00,61,00,79,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,31,\
00,00,00
"Position"="Bottom"
"ControlPanelName"="Microsoft.Display"
[HKEY_CLASSES_ROOT\DesktopBackground\Shell\Display Peoperties\command]
"DelegateExecute"="{06622D85-6856-4460-8DE1-A81921B41C4B}"