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In order to understand your issue, please provide additional information.
You can download .net framework 2.0 for 32 bit architecture from the below mentioned link and verify if it works fine.
In case if you are using 64 bit architecture, visit the below mentioned link.
In addition, you may visit the below mentioned link for additional information on .net frame work related issues and how to troubleshoot them.
Hope this helps in fixing your issue!
Thanks & Regards,
Supreeth - Microsoft Support.
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