Okay, so I've been trying to Dual Boot My computer. I already installed Windows 7, and now i want to install Ubuntu, but when i load to the disk, goes the purple screen, i select the language, and then install ubuntu, after this is the problem. It either goes a black screen with flashing cusor for awhile before freezing, or goes the ubuntu loading screen the freezes after awhile. Now I've tried making a new disc and partions, and still have the samething happening. I've recently built this computer, it has i5 processor, 8gb ram, and a TB hard drive. So if any suggesting would be very helpful, because i've read every thing my CompTIA book has to offer, muiltiple thread, and nothing i've tried has worked.
When you say 'disk', are you referring to a manufactured installation CD that you ordered online or purchased at a store, or a CD you made yourself by downloading an iso and burning it to the disk? If the latter is true, you may have gotten a bad download (as uncommon as it seems, trust me, it happens to all of us).
In addition to this, I generally recommend against using physical disks when installing Ubuntu (I have had some mess-ups when doing so myself); I have found one of the most reliable tool to use when installing more widely used distros (like Ubuntu & Mint) is Linux Live USB (Or LiLi, for short; link). It puts the image onto a flash drive, as opposed to a disk, so any 1GB flash drive will generally do. All of this, of course, is optional, and CDs may work fine for you, so I advise to redownload the iso before trying it on a flash drive.
To check for iso file corruption, as well, you can use md5sum. I would just google it, as it's a bit easier to explain without words.
I had the same issues as well, when I did this, but eventually found this page: WindowsDualBoot: Ubuntu.com I hope it helps you, as it helped me greatly.
I also used a USB and when I tried installing it via restart it wouldn't work, however, I went into it the USB's files in windows, found the installer, and used it that way, and installed it on my pre-prepared linux partition.