I recently updated my operating system from Windows XP to Windows 7. Before I did, I backed up all my files, including my .minecraft files; all of them. When I tried putting them all back onto my computer, the 'resourcepacks' folder was missing, and the 'mods' folder (Forge Modloader) was missing. I tried searching in the 'Windows.old' folders, where there seemed to be everything but the AppData folders. If anyone knows how to locate them, or could just tell me whether or not this is a lost cause, I would greatly appreciate it.