automatic updates really need to be on ,they are mainly security fixes that you really should have,what do you mean its not legit ? if you didnt get your disc with your pc from dell then take the matter up with dell.the discs usually shipped with their pcs are a reinstallation disc specific to their machines.as far as what they look like they are round with a hole in the middle.the coa code is on a sticker on the side or back of your casing,if it hasnt got one then you really need to sort this out.dell reinstallation discs are cheap as chips at ebay.com.running a dodgy version is not worth it their is so many holes in windows that you need the updates just to try and keep your pc secure otherwise you leave it wide open to attacks of all sorts.