win7 专业版64位安装不了.net framework4

win7 安装vs2010报错 Error code -939523550 for this component is not recognized

Hi

When i try to install VS2010, Its not installing. I'm getting an error. It just try to install the framework 4 and failed. Below i paste the error log :

[04/29/12,18:28:13] Microsoft .NET Framework 4: [2] Error code -939523550 for this component is not recognized.
[04/29/12,18:28:13] Microsoft .NET Framework 4: [2] Component Microsoft .NET Framework 4 returned an unexpected value.
[04/29/12,18:28:13] VS70pgui: [2] DepCheck indicates Microsoft .NET Framework 4 is not installed.
[04/29/12,18:28:13] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 64bit Prerequisites (x64) was not attempted to be installed.

......

Hi

I fixed my problem.

1. Try to clean your "%temp%" folder (Start Menu >> Run >> Type "%temp%")

2. Stop the service "Windows Update" (Stat Menu >> Run >> Services.msc >> Windows Update)

3. Delete all files from this path "C:\Windows\SoftwareDistribution\"

Then I installed. Its work fine

我也是这种情况，按照上面的说明，可以安装了！