Why did my External HDD stop working after upgrading to Windows 10 Pro?

[WPCentral Question]

External HDD

My external HDD stop working after upgrading to windows 10 pro? I have tied different USB ports but the problem persist. Strange thing the same HDD works perfectly on my laptop running on windows 7 pro..
Any advice?

 

[palkhin]

similar problem... cant connect my lumia 930 via USB

 

[TranquilKnight]

Kinda similar problem. In my case only flash drives and card readers stopped working. External HDDs are working fine.

 

[gregh57]

I use a surface pro 3 in a dock most of the time. It 'loses' external drives all the time. I have to unplug and plug them back in, maybe restart as well. Started with win10, was fine with win8.1