Died waiting for DLL waiting error 11 when upgrading Spectrum

Document ID : KB000093120
Last Modified Date : 26/04/2018
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 Error : Died waiting for DLL waiting error 11  on Windows when trying to upgrade Spectrum.
This issue can be resolved by rebooting the system before attempting the upgrade.
The OS has a lock on a DLL required for Spectrum to upgrade and does not let it go for use.
A reboot will clean all of this up and allow for a successful upgrade.