Question about HP Pavilion a420n PC Desktop
Please try these steps that im mentioning and i hope it works out for you .
go to ?start ?right click my computer ?click on manage?device manager .You will see the drivers listed with a + sigh next to it .Look for universal serial bus controler and then click on the + sign nex to it ...then right click un uninstall usb root hubs so anything that has the word hub right click on it an then click on uninatall restart the computer and then check if the usb gets detected ...
If this does not work go to the hp website www.hp.com/support ,once the page opens up and where is says select a country or a region select united states then click on the arrow and where it says for product put the model no that is HP Pavilion a420n then click on the arrow and then select software and drivers downloads from the next page which will finally take you to the Select a download page then it shows you the compatible software and drivers.The fourth option saya BIOS IN BLUE cliclk on the BIOS update for A7V8X-LA motherboard and on the next page click on download .A dialogue box opens up so click on save and then save it on the desktop .Go to the desktop and then run it .Restart the computer and then it should work
all the best
Posted on May 12, 2010
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Posted on Jan 02, 2017
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