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When I start my laptop, the error shows as:

'NO bootable Devices' press F1 to retry,F2 for setup ,and F3 for Scan.

When I put in my Windows 7 CD, the same problem happens. My laptop can't read the disk either.

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closed as off topic by izx, Tom Brossman, Florian Diesch, Mitch, Ringtail Sep 10 '12 at 4:35

Questions on Ask Ubuntu are expected to relate to Ubuntu within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

    
First make sure your dvd drive is working. Insert a Ubuntu cd.. and keep pressing F10 after you restart. Choose your DVD drive from the list. Yes you can boot into Ubuntu. I don't know whether Windows is bootable. Never heard of it.... –  Naveen Sep 9 '12 at 12:25
    
@Naveen The key may be different on some devices for displaying the boot device menu. It'd be helpful if the OP posted the exact brand and model number of their laptop in case we need to guide them through working with the BIOS. –  Christopher Kyle Horton Sep 9 '12 at 13:40

2 Answers 2

Try to look into BIOS if HDD and DVD-ROM are detected by your system.

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Probably your laptop lost its BIOS setup. Enter BIOs (F2 as it suggests on boot) and reconfigure the disks (and check the other settings).

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