Installing MVC3 failed with error code 0x80070643

Tuesday, August 02, 2011
By keiji
Category: How to
When I tried to install MVC3 using Web Platform Installer, it said "Successful", but no MVC3 template when I tried to create a new project.
The Web Platform Installer shows no error.

So, then, I tried to use installer "AspNetMVC3ToolsUpdateSetup.exe".
(Download from here)
It failed and provided a log file.

The log file indicated some unexpected error, with the error code 0x80070643.

I Googled and tried a couple of solution, but none worked, but I finally found the solution here.

Essentially, it looks like we need to fix a registry entry for old "Microsoft ASP.NET Web Pages" package to be able to be uninstalled.

Here is the post to resolve the issue:
Mar 11, 2011 05:37 AM by Matt Garven

We experienced the same issue - I was unable to install because an old version of "Microsoft ASP.NET Web Pages" was still installed. However, the uninstaller was failing for the old version.

It seems VS 2010 SP 1 modifies the framework paths in the registry to contain a trailing backslash, which causes the uninstaller for the old version of "Microsoft ASP.NET Web Pages" to fail.

Steps to workaround are:

1. Remove the trailing backslash from the following registry keys:



2. Uninstalled the old version of "Microsoft ASP.NET Web Pages".

3. Add the trailing backslash back to those keys.

4. Install MVC 3.


Re: Installing MVC3 failed with error code 0x80070643
#1Anuja Bakshi @ 04/22/12 9:04 PM
Amazing! this worked. Thanks so much.

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