Terminal server (Windows server 2008 R2) not performing after reboot.

I have a Windows server 2008 R2 that is playing the role of a terminal server....serving our remote users.  Last evening we had an extensive power outage, however i was able to make it back into work and get all of machines powered down gracefully.  After the power cam back up I brought my entire server room back online.  I was able to log into all of my machines before i left, everything appeared to be good to go.  This morning when i came in I started to receive reports that people could not access out crystal report viewer.  That it would not open at all or that it would just not respond after choosing a report.  So I have also noticed that if i try to open anything from another server (mapped drive) word doc, excel, crystal report, notepad it will not open and just kind of hangs.  If i open something that is locally stored on one of the users desktops it opes just fine.  Also at shortly after i started receiving the reports I attempted to lo into the machine and i could not.  It was stuck on "waiting for windows session manager"  I had to hard reboot out of that to get the machine back up. This is all right from the machine itself, logged in as the administrator.  I have an old terminal server Windows 2003 that I have pushed all the users onto for the time being.  This appears to be the only machine on the network that is having issues retrieving files from other servers.  Or running Data link viewer or crystal reports.  I have rebooted the machine since.  I can look through the event viewer to check for issues.  I've also noticed that I can not copy files from this machine to other servers on the network (goes through discovering?) Can anyone lend a hand?
techitch2Network AdminAsked:
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techitch2Network AdminAuthor Commented:
Update, I've figured out it has something to do with Microsoft Security Essentials and this data link viewer.  It looks like MSE updated last night.  Once Datalink viewer is ran the machine gets unstable.  If i have MSE shut down then you can run Datalink viewer without issue.  Does anyone know how to rollback MSE updates?

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techitch2Network AdminAuthor Commented:
Not one response to this question in 5 hours.  Awesome Expert Exchange!  This is why i will not be renewing my subscription down the road.
techitch2Network AdminAuthor Commented:
This has solved the instability however i do not know why Microsoft Security Essentials has nerfed my server.  Also, i do not know how to roll back the update.  No one will try to help answer question.
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Windows Server 2008

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