Hi jack1320,
Please share the system model and operating system installed. You may try following the below mentioned steps and check if it makes any difference:
- Restart the system and immediately start tapping the 'F2' key to enter the 'BIOS'.
- Navigate to the Boot tab. Press Enter on 'Add Boot Option'.
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- You should now get the below mentioned screen.
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- Type 'DVD ROM' for 'Boot Option Name' and then tap the 'Tab' key only once.
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- Ensure that the option similar to the image below (having 'CD' or 'CD ROM' at the end) is selected and press the 'Tab' key again (only once).
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- Tap the space bar only once when the cursor is under 'File Name' as seen in the image below and press 'Tab' key again.
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- Now the 'Yes' button will get highlighted as seen in the image below, press the 'Enter' key.
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- The DVD ROM option will show up as listed under the UEFI Boot as show in the image below.
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- If the process is successful, you should now be able to access the DVD ROM in F12 menu.
Hope this helps. Please reply if you have any questions.