THe issue of not being able to disconnected the device happenned sometimes with me while using my external HDD.Most of the time its says that its ready to be removed,but sometimes i tells me that it cannot stop now although i am not accessing it and even the light on it doesnt flash and on those occassions i shut donw the windows completely to be on the safe side(afterall its my 500GBytes external HDD which includes all of my anime collection
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