I have this hidden partition on my notebook (aspire 6920G) and I have no idea what is it used for. I know that PQService is recovery partition but I've never heard of this. By googling I've found that HP's used to use Compaq Setup partition to boot bios (?), but this is acer. I would really like to get rid of it (because now I can't create another primary partition). Any suggestions? Thanks.