[MiKTeX] initexmf.exe: Windows API error 87: The parameter is incorrect.

[<r.e...@ou...>]

Starting with MiKTeX only recently, I got this error and a corrupt
installation.

Logfile is attached.

Any hints?

Remarkably, first line reads "MiKTeX Setup 2.9.4503 Report", whereas I
thought to install 2.9.5105

 

R.E. Boss