java.io.FileNotFoundException: C:\Windows\System32\mswstr10.dll (the process cannot access the file because it is being used by another process)

Document ID : KB000055444
Last Modified Date : 14/02/2018
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Description:

This error can occur when trying to install Aion 10.2 on Windows.

Solution:

Rebooting the machine will unlock any shared processes and any system dlls. Once the machine is rebooted, try the install again.