HP A420N How To Boot From USB

I have been putting together a simple PC for someone. However, I just found out that it seems there is an issue with the CD ROM. So I am wondering, if I get the disc image on a USB drive is there a way to get the HP to boot from it?
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Majo2469Asked:
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dbruntonCommented:
This thread http://www.tomshardware.com/forum/253863-30-pavilion-a420n seems to indicate that the option does not indicate in you bios but won't hurt to check.
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dbruntonCommented:
Check the BIOS.  

There may be options there that control which devices boot first.  Some BIOSes allow USB devices to boot first, some don't.  You'll have to check yours.
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Aaron TomoskySD-WAN SimplifiedCommented:
Booting a USB isn't as simple as pitting an Iso on the drive. Acronis has a nice USB creator and there are some tutorials on how to get a windows disc image onto a USB that work well for other disc images. This is the one I have followed with success:
http://www.intowindows.com/how-to-install-windows-7vista-from-usb-drive-detailed-100-working-guide/

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nobusCommented:
i would suggest to replace the cd rom drive - much easier, and better solution -  and it does not cost an arm and a leg...
you can also test the old one on another pc - it could be the cable, or motherboard also
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Rob HutchinsonDesktop SupportCommented:
As another alternative solution if you have a spare external USB CD/DVD drive, just go into the BIOS and disable the existing CD/DVD drive then attach the external USB CD/DVD drive and it should install fine if the original problem was with the internal CD/DVD drive.

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Majo2469Author Commented:
The problem was the media, not the drive. However, all these answers are valid, appreciated, and expertly stated.

Thank you experts!
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