U disk cannot copy the reason why the file parameter is incorrect

Unable to copy parameter incorrect issues are more than to the U disk, mobile phone, and other mobile storage copy files or replication process, a similar situation may be caused by the following reasons (the higher the probability, ranking the more forward):

Mobile disk does not have enough space for example, if you need to copy 50M file size, then the mobile disk requires a minimum of 100M storage space, because most USB disk or removable disk nominal capacity and actual capacity discrepancy, nominal 2G u disk, in fact, the storage space is only 1.8G or less; A typical symptom is a small file that can be copied and pasted, but once the file is large, such as files over 200M cannot be copied;

  Damaged partition table information for removable disks

If there is no security removal hardware directly unplug u disk or trojan virus infection, etc., may result in disk partition table information damage; the steps to resolve:

The first step: Open "My Computer"--> on the removable disk on the right mouse button, select "Properties";

Step two: In the pop-up window, select the Tools tab--> Click on the "Check Disk" window under "Check out"--> pop-up. Click on the "Automatically fix file system error (A)" and "scan and attempt to restore bad sectors (N)" to--> "Start" ( S) "for inspection and repair;

Step three: After checking the repair, click "Defragment" under "defragmentation"--> in the pop-up "Disk Defragmenter", first click "Analysis"--> wait until the "analysis", then click "Defragment";

Step Fourth: After restarting the computer, see if the removable disk can copy the file;

Front usb power supply is insufficient some compatible desktop due to poor power quality, may lead to a front usb power supply or mesh interference is serious, there is "unable to copy the parameters are not correct" problem, you can try to the U disk or other removable disks to the chassis behind the USB socket to try;

Mobile disk infected virus is currently popular with many U disk virus, once infected with U disk virus, may cause the partition table information of removable disks is abnormal, and can not be repaired by the system with the program, in this case, the first use of Jinshan poison PA or  security guards for disk scan antivirus, if the mobile disk can also access, and can see the file, will be able to copy all the files on the removable disk, back to the hard drive to, and then open the "My Computer"--> right click on the removable disk--> click "Format"--> select "Quick Format"; After formatting the disk, Then copy the backup files back to the mobile disk, and finally see the "Cannot copy parameters are incorrect", "U disk cannot copy files" issue has been resolved.