|So, do you want the manual or not? If so, post the exact model of laptop. |
This is your header "Gateway Netbook with amd processor – nightsky black new"
The word new jumps out at me. You don't seem to have disks or manuals and don't know much about the unit, including if it is a netbook or a laptop.
We get plenty of people here trying to get help with stolen computers. If you are offended by that, so be it.
If the unit is three years old it did NOT come with Windows 7 installed so you will not be able to restore it to a pristine Windows 7 state.
You may be able to restore it to the VIsta or WinXP that probably came on it originally. That depends on whether or not the restore partition still exists.