microsoft .net framework 2.0安装不了 安装net framework2.0，装不上怎么办？
Microsoft.NET Framework 2.0\u4e5f\u5b89\u88c5\u4e0d\u4e0a\u662f\u4ec0\u4e48\u95ee\u9898\uff1f\u89e3\u51b3\u65b9\u6848:\u8bf7\u6309\u7167\u4e0b\u5217\u6b65\u9aa4\u64cd\u4f5c\uff1a 1. \u4f7f\u7528\u201c\u63a7\u5236\u9762\u677f\u201d\u4e2d\u7684\u201c\u6dfb\u52a0\u6216\u5220\u9664\u7a0b\u5e8f\u201d\u529f\u80fd\u4ece\u8ba1\u7b97\u673a\u4e0a\u5378\u8f7d\u6240\u6709\u73b0\u6709\u7684 .NET Framework \u7248\u672c\u3002\u53e6\u5916\uff0c\u8fd8\u5e94\u4ece\u8ba1\u7b97\u673a\u4e0a\u5378\u8f7d\u6240\u6709 .NET Framework \u6d4b\u8bd5\u7248\u672c\u3002
2. \u5f97\u5230\u63d0\u793a\u540e\u91cd\u65b0\u542f\u52a8\u8ba1\u7b97\u673a\u3002
3. \u8981\u5b89\u88c5 .NET Framework 2.0\uff0c\u8bf7\u8bbf\u95ee\u4e0b\u9762\u7684 Microsoft \u7f51\u7ad9\uff1a
http://download.microsoft.com/download/5/6/7/567758a3-759e-473e-bf8f-52154438565a/dotnetfx.exe (http://download.microsoft.com/download/5/6/7/567758a3-759e-473e-bf8f-52154438565a/dotnetfx.exe)
4. \u5728\u5b89\u88c5\u5b8c\u6210\u65f6\uff0c\u6839\u636e\u63d0\u793a\u91cd\u65b0\u542f\u52a8\u8ba1\u7b97\u673a\u3002
5. \u5728\u91cd\u65b0\u5b89\u88c5 .NET Framework 2.0 \u540e\uff0c\u5fc5\u987b\u518d\u6b21\u5b89\u88c5\u8be5\u5b89\u5168\u66f4\u65b0
\u89e3\u51b3\u529e\u6cd5\uff1a
1\u3001\u7528dotnetfx_cleanup_tool\u6216\u8005\u5fae\u8f6f\u516c\u53f8\u53d1\u5e03\u7684Windows Installer Cleanup Utility\u6e05\u7406\u76f8\u5e94\u7248\u672c\u7684NET\u3002\u5305\u62ec2.0\u7684\u5347\u7ea7\u8865\u4e01\uff0c\u56e0\u4e3a\u5fae\u8f6fnet\u662f\u4e0d\u80fd\u4f4e\u7248\u672c\u51cc\u9a7e\u4e8e\u9ad8\u7248\u672c\u4e4b\u4e0a\u5b89\u88c5\u7684\uff1b2\u3001\u82e5\u4ecd\u7136\u65e0\u6cd5\u5b89\u88c5\uff0c\u53ef\u80fd\u662f\u7531\u4e8e\u4f60\u7684\u8ba1\u7b97\u673a\u73af\u5883\u91cc\u9762\u5b58\u5728\u77404.0\u7248\u672c\uff0c\u5b98\u7f51\u91cd\u65b0\u4e0b\u8f7d\u5b89\u88c5Microsoft .NET Framework 4\uff0c\u5b89\u88c5\uff08\u6216\u4fee\u590d\uff09\u6210\u529f\u4ee5\u540e\uff0c\u76f4\u63a5\u5b89\u88c5Microsoft .NET Framework 2.0\u3002
\u6ce8\uff1a\u5904\u7406\u95ee\u9898\u4e4b\u524d\uff0c\u5148\u53f3\u952e\u5355\u51fb\u8ba1\u7b97\u673a\u7ba1\u7406\uff0c\u9009\u62e9\u7ba1\u7406\uff0c\u67e5\u770b\u8ba1\u7b97\u673a\u7ba1\u7406-\u4e8b\u4ef6\u67e5\u770b\u5668\u53ef\u4ee5\u67e5\u770b\u7cfb\u7edf\u65e5\u5fd7\u627e\u51fa\u95ee\u9898\u51fa\u5728\u54ea\u91cc\u3002
\u6269\u5c55\u8d44\u6599\uff1a
\u5b89\u88c5.net Framework2.0\u51fa\u9519\uff0c\u63d0\u793a\u5185\u5bb9\u4e3a\uff1aError 25015:
\u539f\u56e0\u662f\uff1a\u4e4b\u524d\u5df2\u7ecf\u5b89\u88c5\u8fc7\uff0c\u4f46\u540e\u6765\u53c8\u6ca1\u6709\u6b63\u786e\u7684\u5220\u9664\u800c\u5bfc\u81f4\u7684\u3002
\u89e3\u51b3\u65b9\u6cd5\uff1a
\u7b2c\u4e00\u6b65\uff1a\u5728\u8d44\u6e90\u7ba1\u7406\u5668\u4e2d\u6253\u5f00C:\WINDOWS\Microsoft.NET\Framework\\u76ee\u5f55\uff0c\u627e\u5230v2.0.50727\u5e76\u76f4\u63a5\u5c06\u5176\u5220\u9664\uff0c\u7136\u540e\u518d\u91cd\u65b0\u5b89\u88c5\u3002
\u7b2c\u4e8c\u6b65\uff1a\u5982\u679c\u4e0d\u884c\u7684\u8bdd\uff0c\u5c06"c:\windows"\u4e0b\u7684assembly\u6587\u4ef6\u5939\u7684\u540d\u5b57\u968f\u610f\u4fee\u6539\u6210\u5176\u5b83\u540d\u79f0\uff0c\u6700\u540e\u91cd\u65b0\u5b89\u88c5\u5373\u53ef\u3002
\u53c2\u8003\u8d44\u6599\uff1a\u5b89\u88c5.net Framework2.0\u51fa\u9519
问题的原因在于注册表设置不正确
解决方法：
1. 开始-运行-键入 regedit-回车。
2. 找到以下注册表项：
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders
3. 在“注册表编辑器”的右窗格中，双击常见管理工具。
4. 在“数值数据”框中，键入以下行，然后单击确定：
%ALLUSERSPROFILE%\Start Menu\Programs\Administrative Tools
5. 在文件菜单上，单击退出以退出注册表编辑器。
6. 重启电脑。
如果以上办法无效活着在你的系统上找不到对应注册表键值时，把以下所有内容复制到文本文档，保存为注册表文件*.reg，双击导入。
Windows Registry Editor Version 5.00
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders]
"AppData"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,\
4c,00,45,00,25,00,5c,00,41,00,70,00,70,00,6c,00,69,00,63,00,61,00,74,00,69,\
00,6f,00,6e,00,20,00,44,00,61,00,74,00,61,00,00,00
"Desktop"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,\
4c,00,45,00,25,00,5c,00,4c,68,62,97,00,00
"NetHood"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,\
4c,00,45,00,25,00,5c,00,4e,00,65,00,74,00,48,00,6f,00,6f,00,64,00,00,00
"PrintHood"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,\
4c,00,45,00,25,00,5c,00,50,00,72,00,69,00,6e,00,74,00,48,00,6f,00,6f,00,64,\
00,00,00
"Programs"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,\
4c,00,45,00,25,00,5c,00,0c,30,00,5f,cb,59,0d,30,dc,83,55,53,5c,00,0b,7a,8f,\
5e,00,00
"SendTo"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,4c,\
00,45,00,25,00,5c,00,53,00,65,00,6e,00,64,00,54,00,6f,00,00,00
"Start Menu"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,\
00,4c,00,45,00,25,00,5c,00,0c,30,00,5f,cb,59,0d,30,dc,83,55,53,00,00
"Startup"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,\
4c,00,45,00,25,00,5c,00,0c,30,00,5f,cb,59,0d,30,dc,83,55,53,5c,00,0b,7a,8f,\
5e,5c,00,2f,54,a8,52,00,00
"Templates"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,\
4c,00,45,00,25,00,5c,00,54,00,65,00,6d,00,70,00,6c,00,61,00,74,00,65,00,73,\
00,00,00
"Local Settings"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,\
49,00,4c,00,45,00,25,00,5c,00,4c,00,6f,00,63,00,61,00,6c,00,20,00,53,00,65,\
00,74,00,74,00,69,00,6e,00,67,00,73,00,00,00
"Local AppData"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,\
49,00,4c,00,45,00,25,00,5c,00,4c,00,6f,00,63,00,61,00,6c,00,20,00,53,00,65,\
00,74,00,74,00,69,00,6e,00,67,00,73,00,5c,00,41,00,70,00,70,00,6c,00,69,00,\
63,00,61,00,74,00,69,00,6f,00,6e,00,20,00,44,00,61,00,74,00,61,00,00,00
"Fonts"=hex(2):43,00,3a,00,5c,00,57,00,49,00,4e,00,44,00,4f,00,57,00,53,00,5c,\
00,46,00,6f,00,6e,00,74,00,73,00,00,00
"Cache"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,4c,\
00,45,00,25,00,5c,00,4c,00,6f,00,63,00,61,00,6c,00,20,00,53,00,65,00,74,00,\
74,00,69,00,6e,00,67,00,73,00,5c,00,54,00,65,00,6d,00,70,00,6f,00,72,00,61,\
00,72,00,79,00,20,00,49,00,6e,00,74,00,65,00,72,00,6e,00,65,00,74,00,20,00,\
46,00,69,00,6c,00,65,00,73,00,00,00
"Cookies"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,\
4c,00,45,00,25,00,5c,00,43,00,6f,00,6f,00,6b,00,69,00,65,00,73,00,00,00
"History"=hex(2):25,00,55,00,53,00,45,00,52,00,50,00,52,00,4f,00,46,00,49,00,\
4c,00,45,00,25,00,5c,00,4c,00,6f,00,63,00,61,00,6c,00,20,00,53,00,65,00,74,\
00,74,00,69,00,6e,00,67,00,73,00,5c,00,48,00,69,00,73,00,74,00,6f,00,72,00,\
79,00,00,00
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\User Shell Folders]
"Common Desktop"=hex(2):25,00,41,00,4c,00,4c,00,55,00,53,00,45,00,52,00,53,00,\
50,00,52,00,4f,00,46,00,49,00,4c,00,45,00,25,00,5c,00,4c,68,62,97,00,00
"Common Start Menu"=hex(2):25,00,41,00,4c,00,4c,00,55,00,53,00,45,00,52,00,53,\
00,50,00,52,00,4f,00,46,00,49,00,4c,00,45,00,25,00,5c,00,0c,30,00,5f,cb,59,\
0d,30,dc,83,55,53,00,00
"Common Programs"=hex(2):25,00,41,00,4c,00,4c,00,55,00,53,00,45,00,52,00,53,00,\
50,00,52,00,4f,00,46,00,49,00,4c,00,45,00,25,00,5c,00,0c,30,00,5f,cb,59,0d,\
30,dc,83,55,53,5c,00,0b,7a,8f,5e,00,00
"Common Startup"=hex(2):25,00,41,00,4c,00,4c,00,55,00,53,00,45,00,52,00,53,00,\
50,00,52,00,4f,00,46,00,49,00,4c,00,45,00,25,00,5c,00,0c,30,00,5f,cb,59,0d,\
30,dc,83,55,53,5c,00,0b,7a,8f,5e,5c,00,2f,54,a8,52,00,00
"Common AppData"=hex(2):25,00,41,00,4c,00,4c,00,55,00,53,00,45,00,52,00,53,00,\
50,00,52,00,4f,00,46,00,49,00,4c,00,45,00,25,00,5c,00,41,00,70,00,70,00,6c,\
00,69,00,63,00,61,00,74,00,69,00,6f,00,6e,00,20,00,44,00,61,00,74,00,61,00,\
00,00
"Common Templates"=hex(2):25,00,41,00,4c,00,4c,00,55,00,53,00,45,00,52,00,53,\
00,50,00,52,00,4f,00,46,00,49,00,4c,00,45,00,25,00,5c,00,54,00,65,00,6d,00,\
70,00,6c,00,61,00,74,00,65,00,73,00,00,00
"Common Favorites"=hex(2):25,00,41,00,4c,00,4c,00,55,00,53,00,45,00,52,00,53,\
00,50,00,52,00,4f,00,46,00,49,00,4c,00,45,00,25,00,5c,00,46,00,61,00,76,00,\
6f,00,72,00,69,00,74,00,65,00,73,00,00,00
"Common Documents"=hex(2):25,00,41,00,4c,00,4c,00,55,00,53,00,45,00,52,00,53,\
00,50,00,52,00,4f,00,46,00,49,00,4c,00,45,00,25,00,5c,00,44,00,6f,00,63,00,\
75,00,6d,00,65,00,6e,00,74,00,73,00,00,00
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