manuleka 0 Report post Posted February 3, 2013 Just out of curiosity, When i copy a bunch of files from my PC to a USB drive and i mistakenly remove it before it completes copying all the files... how does it handle this?and what will be the difference between removing it before it finishes from cancelling the copying process? Share this post Link to post Share on other sites
yordan 10 Report post Posted February 3, 2013 When you start copying, Windows start copying the files to it's cache. If you cancel befor it's finished, windows will remove all incomplete files from the USB device and will leave it in a clean state.If you don't cancel the process, the files are in an incomplete state, until the process is finished. If you remove the USB drive before the process is finished, some infos are still in the cache but are not on the disk yet. So the disk needs some cleanup. The cleanup will probably remove the uncompleted files. If you are lucky you will lose only the last written files. Else you can loose the USB filesystem, and you will have to format it again. Share this post Link to post Share on other sites
manuleka 0 Report post Posted February 3, 2013 When you start copying, Windows start copying the files to it's cache. If you cancel befor it's finished, windows will remove all incomplete files from the USB device and will leave it in a clean state.If you don't cancel the process, the files are in an incomplete state, until the process is finished. If you remove the USB drive before the process is finished, some infos are still in the cache but are not on the disk yet. So the disk needs some cleanup. The cleanup will probably remove the uncompleted files. If you are lucky you will lose only the last written files. Else you can loose the USB filesystem, and you will have to format it again. ok... i thought that files are copied one at a time... so when i remove the usb only the currently transferred file will be partly complete or removed? Share this post Link to post Share on other sites
yordan 10 Report post Posted February 4, 2013 I'm afraid also the filesystem descriptors are partly complete. So, next time you plug the USB device, Windows will tell you that it has to be repaired. Share this post Link to post Share on other sites
manuleka 0 Report post Posted February 4, 2013 oh ok... i was transferring a 30 gigs of files (file sizes 400MB~1GB)... and was just wondering what effects i would get if i mistakenly unplug the USB drive while its in the process Share this post Link to post Share on other sites
