It appears that the problem occurs when EVERY Word document is minimised and you use explorer to open another document. In this case, Word looks like it has to restore at least one window to visibility before it can show the new doc.

Is that your experience too or are you getting the behaviour when at least one Word doc is visible first?

In concept, a macro can be used to trap document events such as WindowSize. It may be possible to use this event to discover if a document is also being launched at the same time which could then allow you to reverse this resurrected window. I'm not about to spend any time working on this #firstworldproblem when a simpler fix is to either close your hidden documents or show at least one before opening a new one.

__________________
Andrew Lockton
Chrysalis Design, Melbourne Australia