I recommend you try to uninstall .NET Framework 3.5 SP1, .NET Framework 3.0 SP2, and .NET Framework 2.0 SP2 in Control Panel. Please remove them in this order: .NET Framework 3.5 SP1>>.NET Framework 3.0 SP2>>.NET Framework 2.0 SP2.
After you remove them all successfully, I recommend you reinstall .NET Framework 3.5 SP1 which will automatically setup .NET Framework 2.0 SP2 and .NET Framework 3.0 SP2. You can download .NET Framework 3.5 SP1 here: http://www.microsoft.com/download/en/details.aspx?id=25150
There are some installation tips:
· Check if there are any anti-virus or antispyware applications running. Make sure they are turned off during installation.
· Complete or dismiss Windows Updates before installation (but turn on Windows Update service).
· Clean up your “%temp%” folder (Start>>Run>>%temp%)
· Run the setup file with Administrator privileges: Right-click the installer > Run as administrator.
If you encounter any error during the installation, you can use this tool to collect the logs: http://www.microsoft.com/downloads/details.aspx?FamilyID=e0da314f-6216-4a18-bc6b-7d29cf83af20&displaylang=en
After you run it, you can upload vslogs.cab to an open website like Windows Live SkyDrive or send the it to me (E-mail: v-alsun_at_microsoft_dot_com).
If you can unsure all the .NET Frameworks are healthy, you can try to install the printer.
I hope this helps.
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