I have Visual Studio 2010 Professional version installed on my Windows 7 machine.
I am trying to install Visual Studio 2010 Service pack 1.
Every time the installation starts after some time rollback starts and installation fails.
I have tried using http://www.microsoft.com/en-us/download/details.aspx?id=23691
- Web Installer – this downloaded around 615mb of data and later gave the above error.
- Full ISO – Downloaded the completed ISO for offline setup, was around 1.5 GB but gave the same error.
I am beating my head on this for the past 2 days now. I have tried reinstalling Visual Studio 2010 also.
Error details
Fatal error during installation
Error Screenshot

Please help me on this. Thanks
I finally managed to get this working,
Below are the things I did before re-installing successfully.