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Windows 2008 Repair Framework64\v2.0.50727

Hello

I'm trying to update Exchange sp2 but i have a problem with net frame work Framework64\v2.0.50727

if i run ngen update i get this error
Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))

in ngen.log i get
12/03/2011 12:21:15 [5872]: Command line: ngen update
12/03/2011 12:21:15 [5872]: Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))
12/03/2011 12:21:15 [5872]: ngen returning 0xffffffff

the exchange error is below also
12/03/2011 12:31:32 [5204]: Command line: C:\Windows\Microsoft.NET\Framework64\v2.0.50727\ngen.exe install C:\Program Files\Microsoft\Exchange Server\bin\microsoft.Exchange.Rpc.dll /verbose
12/03/2011 12:31:32 [5204]: Installing assembly C:\Program Files\Microsoft\Exchange Server\bin\microsoft.Exchange.Rpc.dll
12/03/2011 12:31:33 [5204]: Catastrophic failure (Exception from HRESULT: 0x8000FFFF (E_UNEXPECTED))
12/03/2011 12:31:33 [5204]: ngen returning 0xffffffff


anyone have any ideas ?
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re activate ur anti virus
thats clears ur prolum

Author

Commented:
sorry what do you mean ?  i don't have one on this server.  only AVG Admin Console
ok it's finally fixed.
i used this site
http://stackoverflow.com/questions/523879/need-help-getting-ngen-back-into-working-condition

run ngen /delete *

i find this site right at the very start didn't want to run it.  did sound good :)

well in my case it fixes the problem.  Exchange SP2 went on after than and a reboot.

 :)

Author

Commented:
hope this helps someone else i wasted over 12 hours on this