Asked By
elicole
0 points
N/A
Posted on - 02/27/2012
Hey, guys!
NET Framework is not working on my computer. I have decided to post this question here, because I have not been able to find a solution elsewhere. I have done everything that I could do in order to resolve this issue. I have even followed instructions available online, but nothing has worked. I am trying to install NET Framework on my machine, but it is not working. The operating system on my computer is Windows 7 Ultimate. Any help in this regard will be greatly appreciated. The error code that I am getting is Code 643.
Thanks in advance!
Answered By
Asifshah
0 points
N/A
#93818
NET Framework doesn’t seem to work on Windows 7 Ultimate
Windows 7(all editions) includes the .NET Framework 3.5.1 as an OS component. This means you will get the .NET Framework 2.0 SP2, 3.0 SP2 and 3.5 SP1 plus a few post 3.5 SP1 bug fixes. 3.0 SP2 and 3.5 SP1 can be added or removed via the Programs and Features control panel.
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i.Click Windows button and type 'regedit' in search bar.
 ii.Click 'regedit' in search results
 iii.Navigate to following registry hive:
HKLMSoftwareMicrosoftWindowsCurrentVersionInstaller
Check if following registry keys have correct values:
 ■MsiExecCA32 should end with Windowssyswow64msiexec.exe
 ■MsiExecCA64 should end with Windowssystem32msiexec.exe
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You may find that the entries are correct but now check the privileges on the key. Set them to read only. Once I changed ownership on the key and made sure the owner had full privileges I was able to install the file downloaded earlier, http://www.microsoft.com/en-us/download/details.aspx?id=17718Â As a matter of interest, I had run the various tools to clean up previous installations as well as make sure there were no fingerprints from their installs as well.
