Problem
========
Unexpected error refreshing Server Manager:Element not found.(Exception from HRESULT: 0x80070490)

Analyze
=========
C:\Windows\logs\CBS\Checksur.log

Checking Packages
(f)      CBS MUM Missing      0x00000002   servicing\Packages\Microsoft-Windows-iSNS_Service-Package~31bf3856ad364e35~amd64~~6.1.7600.16385.mum
(fix)    CBS MUM Missing      CBS File Replaced     Microsoft-Windows-iSNS_Service-Package~31bf3856ad364e35~amd64~~6.1.7600.16385.mum from Cabinet: C:\Windows\CheckSur\v1.0\windows6.1-rtm-server-neutral-amd64.cab.
(fix)    CBS Paired File         CBS File also Replaced         Microsoft-Windows-iSNS_Service-Package~31bf3856ad364e35~amd64~~6.1.7600.16385.cat from Cabinet: C:\Windows\CheckSur\v1.0\windows6.1-rtm-server-neutral-amd64.cab.
Checking Component Store

Summary:
Seconds executed: 330
Found 1 errors
Fixed 1 errors
  CBS MUM Missing Total count: 1
  Fixed: CBS MUM Missing.  Total count: 1
  Fixed: CBS Paired File.  Total count: 1

Solution
=======
Run Microsoft Update Readiness Tool to fixed Microsoft-Windows-iSNS_Service-Package~31bf3856ad364e35~amd64~~6.1.7600.16385.mum.

Microsoft Update Readiness Tool : http://support.microsoft.com/kb/947821