The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access
部署安装web程序时出现下面的错误，看了下是目录缺少权限的问题，其实只要按照要求一步就可以修复的，很多朋友不喜欢看错误提示，耽误了很多时间，下面给出具体的解决办法：
错误如下：
2003系统提示错误：
The current identity (NT AUTHORITY\NETWORK SERVICE) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'.
XP系统会出现如下错误（我是在XP系统下运行的，所以这个错误信心给的详细点）：
Server Error in '/' Application.
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The current identity (530C3E52B37F453\ASPNET) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: The current identity (530C3E52B37F453\ASPNET) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'.
Source Error:
An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:
[HttpException (0x80004005): The current identity (530C3E52B37F453\ASPNET) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'.]
System.Web.HttpRuntime.SetUpCodegenDirectory(CompilationSection compilationSection) +3474123
System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags) +226
[HttpException (0x80004005): The current identity (530C3E52B37F453\ASPNET) does not have write access to 'C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files'.]
System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +3426855
System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +88
System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +149
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Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42
解决办法：
如图：
C:\WINDOWS\Microsoft.NET\缺少必要的权限，加users完全权限即可（找到这个目录，右键属性，安全选项，给user账号加入写权限或者完全权限） 或者 C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET这个目录，右键属性，安全选项，给 ASP.NET 帐号加入修改和写入权限