Instructions
Turn off your computer. Unplug the power supply, remove your laptop batter, and wait at least 30 minutes before returning the battery and power chord to the laptop. As explained by Trouble Fixers, a cache of data from your USB device is stored on the motherboard. This cache is not completely erased until the motherboard fully discharges following power-down. Once the cache is cleared, most USB errors will be fixed. Turn on your laptop computer. Try to use the malfunctioning USB port. In most cases, simply turning off and unplugging the laptop will help remedy the problem. If a problem persists, continue with Step 5. Click on the "Start Menu." Click to open the "Control Panel." Click on "System and Maintenance." Click on the "Device Manager." A new window will open that lists all hardware and external devices currently installed on your laptop computer. Scroll the list until you notice the heading "USB Root Hub." Click on this option. Select the USB port that reads "Unknown Device." All other, functioning USB ports should say "unused port" or list a specific external USB device. Right-click on the Unknown Device port and then select "Update Driver." According to the tech-help website, Amit Bhawani, this will trigger an automatic update of the USB drivers. If no new drivers are found, the old driver will also refresh and repair. In many cases, a malfunctioning port is simply caused by outdated driver software. With the latest drivers, your port can be used with current USB devices without any problems. If problems do reoccur, then the port may be physically damaged and you'll need to take the laptop computer to a computer repair technician to get a new USB port installed.
dont forget to leave a comment and state how helpful this post is to you
The Dell 926 printer is an All-In-One model that you can use as a printer, scanner and a fax machine. When the printer becomes unresponsive there may be a communication problem between the printer and your computer. To correct this type of problem you need to first verify that the USB connector cable is not malfunctioning. You can do this by resetting the communication settings between the computer and the printer.
y1 Press the "Power" button to turn off the printer. Unplug the power cord from the electrical outlet or the power strip.
Disconnect the USB connector cable for the printer from the computer.
Turn off your computer from the Windows "Start" menu or by pressing the "Power" button.
Plug the USB connector cable back into a USB port on the computer.
Plug the power cord for the printer back into power strip or electrical outlet.
Press the "Power" button to turn on the printer. Press the "Power" button to turn on your computer.
222 views
Usually answered in minutes!
×