XP is not able to uninstall the USB device, this issue is already quite common, where the small series summarizes the following two solutions:
First, complete the operation of U disk data, close the corresponding program. Return to the My Computer window and open a drive for folder operation (except for the USB U disk). Then click on the taskbar of the U disk icon, then will pop up safely delete U disk dialog box, click "OK" button will be able to pull the U disk from the computer down. If in this case still cannot uninstall U disk and other equipment, then you need to doubt: 1, check whether there are procedures to occupy the resources of U disk. such as music players, media files and some of the software installed in the U disk. You can use Unlocker and other software to remove these resources, and then uninstall the U disk can be removed. 2, check whether there are viruses in U disk, resulting in the use of system resources, which can not download normally. Recommend the use of antivirus software designated U disk path, and its overall scan to remove the virus on U disk impact.
Second, the U disk plug into the USB interface, and then select "My Computer" → "Properties" → "hardware" → Device Manager → "disk drive", find the U disk project, open the U disk's "Properties" dialog box, switch to the Policy tab, select the "Optimize for quick deletion" radio button, click OK. In this way, the next time you use a U disk, as long as the completion of the data operation, you can directly from the USB connector pull down.