When I bought my new laptop it already came with Windows 7 installed- however, I always prefer to install my own partition. So I deleted (during the Windows 7 installation) as many of the existing partitions as I could so that I just had three remaining- 100GB for Win 7, 20GB for future Ubuntu and something like 100MB it wouldnt let me delete.
Windows 7 is installed fine, however I have Ubuntu on a USB Stick (which has installed to previous laptops in the past with no problems) and when I select to install Ubuntu it tells me no other operating systems can be detected. Obviously I dont want it to overwrite my Windows 7- but I have no idea what I can do.
I'm not an expert with Linux, so any suggestions/instructions please bear this in mind.