How to Fix USB Device Keeps Disconnecting and Reconnecting Windows 10

Have you ever encountered the problem that a USB flash drive keeps connecting and disconnecting on Windows PC?

After plugging your USB flash drive into a USB port on your Windows PC, if it keeps disconnecting and reconnecting constantly, you can read this article. Here we will expose its  main reasons as well as corresponding solutions to you.
Solutions 1:Connect USB Device different USB port
On your laptop or desktop computer, there should be more than one USB port. So, try to connect your USB Device to each USB port until the drive won't disconnect anymore.
It's said that some devices with USB 3.0 are easily affected by Windows 10 operating system, but owners can avoid the repeatedly disconnecting and connecting problem by putting the USB Device to a USB 2.0 port. Only accept the truth that the data transfer speed will be slower than in the USB 3.0 port.
Solutions 2: Turn off USB selective suspend
1.Press Windows Key+ S and enter control panel. Select Control Panel from the list of results.

2.When Control Panel opens, go to Power Options.

3.Power Options window will now open. Locate your power plan and click on Change plan settings.

4.Click on Change advanced power settings.
5.Go to USB settings > USB selective suspend setting and set it to Disabled. Click on Apply and OK to save changes.

After doing that, your PC won’t turn off your USB devices to save power and problems with your external hard drive will be resolved. Many users reported that this solution worked for them, so we strongly suggest that you try it out.
Solutions 3: Stop your PC from turning off Mass Storage Device
1.Press the Windows key+R , then copy & paste devmgmt.msc into the box and click OK.

2.Double-click on Universal Serial Bus controllers >  the first item of USB Root Hub. 

3.CLICK the box before Allow the computer to turn off this device to save power whether it’s checked or unchecked. Then click OK. 

4.Check if this fixes the mouse randomly disconnecting issue.
Solutions 4: Disable USB legacy support in BIOS
If you have both USB 3.0 and USB 2.0 ports on your PC, you might be able to fix this problem by disabling USB legacy support in BIOS. To see how to do that, we strongly advise you to check your motherboard manual for detailed instructions.
Several users claim that you need to perform few extra steps in order to fix this problem. To fix the issue, you need to make a couple of changes in Device Manager. To do that, follow these steps:
1.Open Device Manager, locate your external hard drive and double click it.
2.Navigate to Policies tab and check Better performance. Check Enable write caching on this device option. Now click on OK to save changes.

3.Lastly, locate Intel USB 3.0 extension driver in Device Manager and uninstall it.
After doing that, restart your PC and the problem should be completely resolved.
Solution 5: Install USB 3.0 controller drivers
If your USB Device keeps disconnecting, the problem might be related to your drivers. However, you can fix this problem simply by installing new drivers for your USB 3.0 controller.
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