Hi guys, well I have finally demolished my Z 83-4 home unit. In a futile attempt to leave Windows and try an Ubuntu OS, that could not run a network adapter, forcing me to try to revert back to Windows,I have corrupted the bios, so all boot options are blocked. As a novice I would gladly accept a Windows 10 OS again,if that was possible so any assistance you could provide me with, would be appreciated or maybe a good laugh and a warning to others to be careful.(I did keep the Windows ID key.) Thank you old dave.