I was moving stuff about my hard drives and got this error message, i cant see were the file is and this popup window comes on screen every few mins. i cant left or right click it to find out about it,

i am not bothered about the data just the popup thing

"Windows - Delayed Write Failed

Windows was unable to save all the data for the file J:\$Mft.
The data has been lost.This error may be caused by a failure of your computer hardware or network connection.
Please try to save this file elsewhere."