Dell PowerVault DL2100 - Manual (Page 7)

Upgrading from Windows Server 2008 x64 to Windows Server 2008 R2 for Symantec Backup Exec
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b. If this uninstallation procedure appears to hang, start the task manager.
c. Locate the SNMP Service.
Figure 5: SNMP Service
d. If the SNMP Service is in a Stopping state then Right-Click and select Go To Process.
Figure 6: SNMP Process
e. Locate the snmp.exe process, right click and select End Process. This step allows the
OMSA uninstallation to complete.