Error on Installation of MVC3 at Windows 7 -32 Bit Operating System

Question

I want to run MVC 3 on my Windows 7 32 Bit machine. I have Visual Studio 2010 and I can create ASP.NET MVC2 projects there. But now, I want to install MVC 3 in my machine. So, I tried the online installation using Web Platform Installer from http://www.asp.net/mvc/mvc3 link. After installation, I didn't find the ASP.NET MVC 3 Web Project Template in my Visual Studio 2010 Project Templates. So I again downloaded the Offline Installer from same link. But I got error when I ran the installer. Clicking on the Log file I got:

OS Version = 6.1.7600, Platform 2
OS Description = Windows 7 - x86 Ultimate Edition 
CommandLine = h:\temp\ext6142\setup.exe
Using Simultaneous Download and Install mechanism
Operation: Installing
Package Name = Microsoft ASP.NET MVC 3
Package Version = 3.0.11209.0
User Experience Data Collection Policy: Disabled
Number of applicable items: 6
Exe (h:\temp\ext6142\VS10-KB2465236-x86.exe) succeeded.
MSI (h:\temp\ext6142\AspNetWebPages.msi) Installation failed. Msi Log: Microsoft ASP.NET MVC 3_20110118_142652087-MSI_AspNetWebPages.msi.txt
Final Result: Installation failed with error code: (0x80070643), "Fatal error during installation. " (Elapsed time: 0 00:01:39).

Answer 1

After installing from web platform, I didn't check the selected .NET Framework Version in Visual Studio Project Template when I wanted to create a new project in MVC 3. Default .NET Framework was 3.5 in the visual studio of my machine. So MVC 3 project template wasn't showing in the project templates.
And, without uninstalling the existing MVC 3, when I again wanted to install MVC 3 from offline installer, I got the error I mentioned in my question. It may happened because either performing same installation or the file was corrupted at the time of downloading or any other issue.
Later, after uninstalling MVC 3 from control panel, I again run the web platform installer to install the MVC 3 and this time I check the selected .NET version. I selected .NET Framework 4 and MVC 3 project template is now appeared in visual studio's project templates.