I understand that you wish to install a different operating system for your notebook. I am happy to help with the issue, but as an FYI, HP only provides drivers for windows 8.1 for that model of notebook, and so will not support Ubuntu on that device. I would recommend that you make a set of recovery disks before you think of installing an unsupported operating system to give you at least a recovery option.
In terms of the issue with the cd not reading it is most likely going to have to do with the cd itself. The notebook is almost certainly UEFI enabled, and so if you put in any bootable device it has to have an UEFI partition, unless you enable legacy support in the BIOS.
Malygris1 I work on behalf of HP Please click Accept as Solution if you feel my post solved your issue, it will help others find the solution. Click Kudos Thumbs Up on the right to say “Thanks” for helping!
Malygris1, the first link you provided loops back to the main HP Technical Support forum and has ZERO information about the UEFI and Startup Menu. The second link you provided is to a 3rd party's web site and has ABSOLUTELY NOTHING to do with this model of tablet.
It is OK to state that HP will not support Ubuntu on this device, but it's absolutely unacceptable to intentionally send people on wild goose chases!
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