Hi,
You may try to download the stand alone update and check if it installs fine.
Access the link below and download the update for Microsoft .NET Framework 3.5 Family Update (KB959209) x86.
http://www.microsoft.com/downloads/details.aspx?familyid=b9de7937-2c12-4f16-ad66-a31b83931953&displaylang=en
While downloading and installingall the updates available in the section titled
Files in This Download, Make sure that the updates are installed in the following sequence:
1. Install the update for the .NET Framework 2.0 Service Pack 2 -Windows6.0-KB958481-x86.msu
2. Install the update for the .NET Framework 3.0 Service Pack 2 -Windows6.0-KB958483-x86.msu
3. Install the update for the .NET Framework 3.5 Service Pack 1 -NDP35SP1-KB958484-x86.exe
Note: The updates below may not
be listed in the install sequence indicated above, so please ensure you
download and install these updates in the above sequence.
If the issue persists, I would suggest you touninstall
all the versions of the .NET Framework on the computer, and then
reinstall all the versions of the .NET Framework on the computer. You
may access the link below and follow the step
and check if it helps you fix the issue.http://support.microsoft.com/kb/923100
Link to download .net framework cleanup tool:http://blogs.msdn.com/astebner/archive/2006/05/30/611355.aspx
Hope this helps. Let us know the results.
Thanks and Regards,
