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When I insert my disk and restart my laptop, it goes to the start up screen and says that my disk is corrupted or there is data missing and then requires that I start up with windows 7.I have tried the 32 bit and 64 bit and the 32 bit is corrupted and 64 bit wont play on my laptop. Please help me.

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It is possible that your DVD did not burn correctly. You could try to boot the same dvd on another computer or try to use a live USB instead. – To Do Nov 4 '12 at 7:24

After downloading the iso check the md5sum for correctness. If it isn't correct, there's no needs to spoil a disk. When burning, make sure to have the disk checked after burning - or better yet use an usb stick.

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