Windows 7 Professional RDP Issue

Help!!!

I have a windows 7 machine that is having trouble connecting to Server 2008/2012.

I get this error: "An authentication error has occurred. The requested security package does not exits"

I undid recent updates, but this did not fix the issue.
HyperQuestionsAsked:
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JohnBusiness Consultant (Owner)Commented:
You can try a Windows Repair Install.  See the Seven Forums Tutorial below for a guide on performing a repair install.

http://www.sevenforums.com/tutorials/3413-repair-install.html

If that does not work, then you will need to back up the system and re-install Windows fresh. RDP works fine in Windows 7 so something has corrupted the system.

... Thinkpads_User
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JohnBusiness Consultant (Owner)Commented:
What error do you get?

I use Windows 7 Pro 64-bit and Windows 8.1 Pro 64-bit to RDP into Server 2008 with no difficulty.

Is your machine the Pro version (not Home)?

Did you do all the recommended updates?  Windows 7 sometimes left the .NET Framework in the Recommended category and you probably need the .NET updates installed.

Is your antivirus/firewall software conflicting?  Try disabling it temporarily.

... Thinkpads_User
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Rich WeisslerProfessional Troublemaker^h^h^h^h^hshooterCommented:
I still don't understand why this seems to happen on Win7 machines, but double check your registry:
HKLM\System\CurrentControlSet\Control\LSAMake certain tspkg appears on the list of 'Security Packages' in \HKLM\System\CurrentControlSet\Control\LSA, and add it if it's missing...
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HyperQuestionsAuthor Commented:
It's windows 7 Pro x64 with RDP v 8.1.  All the RDP registry keys are there.  The PC is fully up to date, including .net.
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JohnBusiness Consultant (Owner)Commented:
Did you try disabling the antivirus?

Also, set up a new Windows User Profile. Log in under the new Profile and test. The User Profile could be corrupted.

.... Thinkpads_User
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HyperQuestionsAuthor Commented:
New user Prof and anti-virus didn't work either
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bigeven2002Commented:
Just curious, can you go into the control panel on win7 and open credential manager, is there an entry for the 2008 and 2012 server? If so, remove it and then reboot and then try again.
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HyperQuestionsAuthor Commented:
None of it works.  I'll reload the machine.

Thanks for the help!
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HyperQuestionsAuthor Commented:
Reloading the OS.
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JohnBusiness Consultant (Owner)Commented:
@HyperQuestions - Thanks for the update and I was happy to help.  ... Thinkpads_User
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