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Command line option syntax error. Type Command /? for help.

Sometimes you can get this error message when installing microsoft updates. According to ms support forums it can be linked to national characters in windows user name, eg. deutsch Ö umlaut sign (sample below):


How to fix

Go to control panel and create new user with administrator account rights. Using only english alphabet for user name, eg.
aabb - that is OK.
Öab - that is _NOT_ OK!
Then logout, re-login to windows using the new username you just created and then apply the patches that previously generated the error again