Elvir ist ein Held tbh . <| sep |> Thank you , uViolemori ! You have awarded karma to user uzjaeger . Moderators of rpumparum <| sep |> Probably hardware gore . If this is occurring regularly , then your hard drive is starting to fail . To avoid data loss , copy your important files to an other location the cloud , another drive , CDs , . whatever you have available or generate an image of the drive if you have available storage space . Avoid copying too many files at once , because this can put the drive under stress and cause it to fail completely . In case you can ' t access some files on your drive again , is an utility that can in some situations recover files from a partially damaged or corrupted hard drive and it saved some of my files when my usb hard drive broke . It is not guaranteed to work though , so don ' t see the existence of such tools as an excuse to not back up .