Xavi3rify :
Last time I tried I had to format my hard drive because I couldn't get into Windows anymore...
Can you tell me how or link me to something? Thanks
Always try to install windows first because it will erase the Ubuntu loader if you install Ubuntu first whereas Ubuntu will add windows to it's loader.
So install Windows.
When finished go to disk management and shrink the windows volume as much as you want to leave space for Ubuntu.
Leave the empty space created empty.
Shut down.
Boot from your Ubuntu medium and select either live or install. The advantage of live is you can check hardware issues before installing.
Accept your prefered keyboard, language, time zone etc...
When it gets to the partitioner it will offer to install Ubuntu side by side with windows, that's the easy way and it'll use the empty space to install.
User name, computer name and password your choice.
If you have a webcam it'll offer to take your photo for an icon if you want or you could just skip that.
Have a glass of tea and it should be finished.
Reboot. windows will probably complain about the hard drive being messed with. Just let it do it's check and it'll be happy again.
It really should be that easy.