Desktop I7-4790 - 16g memory - W10 latest incarnation - Start/Run/cmd.exe, opens then immediately closes. Sometimes you get a flash of the whole window but mostly just a flash of the min/max/exit buttons. Can anyone suggest a fix?

Fixes I've tried : Tried RKill, Malwarebytes, Avast freebie runs permanently, everything up to date.

Background : It first happened 3 weeks ago just after windows did its latest massive update, so I formatted the windows drive (SSD) and reinstalled w10. Command box worked fine until windows did the same update again - back to square 1. Is this MS telling us to convert to Powershell????

I've put cmd.exe on a stick from a different machine not affected, when I run it from the stick or anywhere else on the desktop I get the same result.

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    Welcome to the site, Dave. This site works a little different than the typical forum. This is a Q&A site. So, you need to ask a specific question we can answer (or attempt to answer). The only question you have here is if MS is trying to tell us to convert to Powershell. That question is off-topic because it is not something we can answer. Please use the edit feature to add a question we can answer. – CharlieRB Dec 22 '17 at 15:46
  • If you open start, and type cmd, before pressing enter, does it indeed say Command Prompt? It is possible it actually finds a .cmd script and you start that instead. – LPChip Dec 22 '17 at 15:49
  • @LPChip yes - all that works correctly - I can even right click the Command Prompt up the top and Run as Administrator which does exactly the same thing (start/stop) – Dave Pruce Dec 22 '17 at 15:53
  • Can you start Windows in "Safe Mode with Command Prompt"? – a-- Dec 22 '17 at 18:40

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