Actually you don't need to mention your Product Licence Key, your company name ,personal email id, as well as your mobile number. Never disclose your personal details to any public forum.
Regarding your Windows Update error:
According to Microsoft - If you receive Windows Update error 80072ee2 while checking for updates, the Windows Update servers might be experiencing an unusually high number of requests for updates. Close Windows Update, wait 10 to 15 minutes, and then
run Windows Update again. You can also wait for Windows Update to run at its next scheduled time.
It may happen if you are using a third party Firewall also. Make sure that the Firewall is not blocking Windows Update and it is included to the exceptions list.
You might be able to automatically fix some problems by running the
Windows Update Troubleshooter
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Regarding .NET 3.5 Issue:
Try to run .NET Framework Repair Tool if that fails then try .NET Framework cleanup tool. Kindly go through the following blog article for step by step instructions:
http://blogs.msdn.com/b/astebner/archive/2008/08/28/8904493.aspx