Windows 7 cannot detect usb flash drive

And then, you will lose it forever. See if your drive is here. Sometimes, it will be marked as Removable. If it does not contain any partition, you still can see an unallocated space.

Step 2. Try the following solutions if your drive does not appear in Disk Management. Do not use USB hubs. The USB hub does not supply enough power for your drive. You should directly connect the drive to USB port. Plug flash drive into different computers. Create a new simple volume with Disk Management if your drive is marked as an unallocated space. You can right-click the unallocated space, select New Simple Volume from its context menu and follow the instructions on the wizard to finish the pending steps.

You can right-click the drive, select Format from the list and then select file system and hit OK to start the process. Clean the drive with Diskpart if you can see the drive but cannot format it in Disk Management.

This may be caused by a messy partition scheme on the drive. I have 9 USB ports on my windows 7 PC, all of which function properly for all devices except flash drives. The devices do not appear in either device manager or disk management, it's like nothing is even plugged in.

I don't own a printer and need flash drive functionality to print resumes and job application forms. This thread is locked.

You can follow the question or vote as helpful, but you cannot reply to this thread. I have the same question 0. Report abuse. Details required :. Finally, you need to click Apply at the toolbar to submit the whole operations. The drive letter assigned to the USB drive is occupied by another drive in the computer is another reason that causes USB flash not recognized problem. For this situation, you can assign drive letter to this USB drive.

In the main interface, you can see the USB drive shown with no drive letter. Finally, click Apply at the toolbar to submit the pending operations. PS: AOMEI Partition Assistant is a great free tool that helps you manage your hard disks, such as format partition, assign drive letter, create partition, resize partition, etc. You can upgrade to its Professional edition to get more advanced features like allocated free space, convert boot disk between MBR and GPT without losing data , etc.

Different causes to USB flash drive not detected need different solutions to solve. Here we conclude 7 situations and 7 solutions. Hope this post can help you fix USB not detected problem. If you have any other solutions, welcome to share it in the comments.

How to fix USB flash drive not detected? Method 1. Method 2. Method 3. Update or reinstall USB flash drive driver If there is no problem with the method 1 and method 2, you can try to update or reinstall USB flash drive driver to solve the problem. After that, reboot your computer, and connect the USB drive to see if it can be detected.