Deselect the box beside “ Allow the computer to turn off this device to save power.Double-click the first “ USB Root Hub” entry on the list.Expand the contents of the “ Universal Serial Bus Controllers” category.Type “devmgmt.msc ” (no quotes) inside the Run dialog box, then click “ OK.Launch the Run dialog box by pressing “ Windows Key + R” on your keyboard.So, we recommend checking your power management settings by following the steps below: However, sometimes Windows “forgets” to switch them back on when you need them. This is a power-saving feature that is useful in extending your battery life. Your system may be set to switch off the USB controllers when you’re not using them. Solution 3: Check Your Power Management Settings If you’re still facing the USB port not working, try the third solution below.Īlso Read: How to Fix “USB Composite Device Can’t Work Properly With USB 3.0”? Check if your USB device is functioning properly.Connect your USB device to your laptop.Unplug the power cord or AC adapter from your Dell laptop.To see if this is the case, follow the steps below: USB ports of laptops malfunction when they do not get sufficient power. If you’re using a Dell laptop that doesn’t recognize your USB device, you should check if it has any issues with the power supply. Solution 2: Disconnect and Reconnect the Power Cord Try the next solution if the Dell USB ports not working.Īlso Read: How to Fix MTP USB Device Driver Problem on Windows 10 So, we recommend plugging your USB device into a different port. This problem can prevent the port from reading your USB device properly. In some cases, the root cause of the problem is as simple as a dusty or damaged USB port. In most cases, learning how to make a Dell PC recognize a USB device if it doesn’t is easy. Choose the solution that works best for you in your situation: Solution 1: Use a Different USB Port Go through the methods below if your USB port stopped working. How to Fix Dell Laptop USB Ports Not Working We’ll show you how to fix the laptop USB ports not working i n the next section. Your USB may not work because of disabled USB ports in the Device Manager, system settings, or conflict with other programs. Ī faulty cable or devices can also be the cause because damaged or malfunctioning cables can affect connectivity.įurthermore, if the power supply isn’t enough, it can affect how the USB functions, especially for laptop users.Īnother reason for th e USB port not working on laptop is outdated or corrupted USB drivers. T he first thing that could prevent a correct connection is physical damage or debris within the USB port. There are several reasons why your Dell laptop USB ports not working.