I want to restore my system to remove some problem of my computer, however, I can not find my backup files. I didn't remeber when I deleted it, how can I restore my computer without this backup files. Because my camera can not show on my computer, showing some program conflicts with it. I didn't find the conflicted program, in order to let the camera work well I want to restore my computer, then I found the backup file is missing. I used the GGhost backup that files, what can I do now?