USB device not recognized in Windows 7

Does Windows 7 not recognize your USB stick? If so, there’s an easy trick that might help. If it doesn’t you might have to delete a couple corrupt files.


USB device not recognized

Fix USB Drive Not Recognized: Easy Way

Sometimes your motherboard USB connectors are left in a “dead” state. If you remove a USB device and quickly insert it again, the USB connector can’t handle the many requests and might stop working until you “reset” it.

How to reset a USB port? Simply shut down your PC and unplug it for a minute or two.

Fix USB Drive Not Recognized: Delete Device Cache

Another common reason why the USB drive is not working is that your device cache is corrupt. If you have problems with installing devices and suddenly your USB device stops working, you can simply clear the device cache and it will work again.

The device cache contains drivers of all your connected devices, including your USB device. If the cache is broken (for whatever reason) your USB stick will stop working immediately.

You can safely delete the INF (Setup Information file) because it is only a cache file and will be re-created automatically. If you are feeling uncomfortable deleting a system file, simply rename it.

1. Step Open C:\Windows\System32\DriverStore
2. Step Rename INFCACHE.1 to INFCACHE.old

INFACACHE.1 is not visible? You will need to unhide hidden files first

Reboot and try to use your USB device again. Hopefully it does work now. If it doesn’t, please post a comment below.

DVD drive not recognized:
Should you ever have problems with your DVD drive not being recognized, here’s how to fix it:

Fix DVD Drive not recognized Part 1
Fix DVD Drive not recognized Part 2

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Oliver is the founder and lead editor of this site. He is interested in finding new ways to break Windows, find common errors and help others to fix them. Aside from that, he loves to fully customize systems with Rainmeter and Dreamscene, find out more about ancient civilizations like the Chachapoya, sharpen his digital photography skills and create software with a small group of selected developers. If you would like to connect with him to discuss anything, send him a mail!

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2 Responses to USB device not recognized in Windows 7

  1. Orange Community Approved Comment:
    Kyle said:

    My WD hard drve will not load the data stored on it. Looking at the My Computer screen it will show the Local Disk from the external hd as drive N: (which I set) and the CD Drive as drive K: which both have always shown up when the device is plugged in. I have deleted the INFCache.1 file and restarted the computer, plugged in the hd and the same problem exsists. This hd does work just fine on other computers. Hope someone can help me. Thanks

  2. Orange Community Approved Comment:
    Agnar said:

    Good guide but i followed a similar if not the same guide and i removed infcache.1 from my computer, rebooted and put in a usb and nothing happened. I checked the path through system32/DriverStore and the file isnt there. I have “Show hidden files and folder” active but infcache isnt there :(

    Thanks

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