I have a Windows 7 laptop and about a year ago I installed Ubuntu to dual boot with. I struggled through it since I knew nothing of computers and eventually got it to work. I've been able to restart my computer and boot into either Windows or Ubuntu without any problems since then.
Now, for seemingly no reason, I went to restart my computer to switch to Ubuntu and it just went straight to Windows. It's been so long that I hardly remember anything about how I installed Ubuntu, so I feel kind of lost with what to do to try to fix this, or how to go about it. Any ideas how to get my Ubuntu back?