Microsoft word problem  

you doesnt need to delete it becouse it is emporary and it will be deleted from it own after you close exsisting file of microsoft word ... this temporary files are create in order that if power went down so you can restore your data from this temporary file

yes the above response is correct.. the temporary file gets deleted itself later..

but it persists if the MS word is closed using "end task" or "end process" or power failure, system crash or even shutting down while the file is still open.. if MS word doesnt get enough time to delete the temporary file, it will persist..

a suggestion: do not work with documents by keeping them on desktop. copy that file into some folder and then edit it if you are so annoyed with that temporary file..

They are right, all you have to do is close ms word properly and give it some time to do its own house cleaning. Turning this feature off will affect auto-recovery and auto-save which you do need in case of abnormal ms word termination.