In order to fix the problem, remove the memory card from the camera, wait several seconds, insert it back and try to transfer the photos. If it doesn't work, press Windows + R key combination, type devmgmt.msc and click OK. Expand the Universal Serial Bus controllers list, right-click on the driver and select Uninstall. Reboot the PC, connect the camera using the USB cable and press Scan for hardware changes icon from Device Manager. If it still doesn't work, open the camera drive from My Computer/Computer and transfer the files to your PC manually using Copy/Paste feature. After that, drag and drop the images to ImageBrowser EX and edit them.