If you encounter the following error:

'Product: Egress Switch - Error 1720. There is a problem with this Windows installer package. A script required for this install to complete could not be run. Contact your support personnel or package vendor. Customer action xxxxxx script error -2147217406, : Line 1, Column 1'.

This could indicate a problem with your Windows Management Instrumentation (WMI) also known as the winmgmt service.

Please follow the instructions provided by Microsoft to backup, salvage and reset your WMI Repository following this link: http://msdn.microsoft.com/en-us/library/aa394525(VS.85).aspx

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