USB ports in Laptop

[pwint]

I have the problem in reading USB port from the laptop. My laptop is Acer brand which can access wireless connection.But the problem is in USB port. It has 4 ports and all of them work well since the beginning.
But, i can't read from all of the USB port now and i don't know what happens in these ports.Where should i check please? Is it something related with hardware inside or software? Please suggests me. Thank you.

[thedon57]

Hi go to my computer and see if thet are recognised there, if not go to control panel, systems tools, click on hardware then device manager and see if there are any mass storige devices showing if there is click on each one and see if they are working properly. if yellow? or o then you need to reinstall the drivers for them, if they are there then see if they have become disabled.

Please let us no one way or another the outcome.