upgrading a Z440 workstation to Windows 10

[MazdaRX7]

I have a Z440 workstation. Is there any special things I should do or know before upgrading this desktop to Windows 10 pro or just follow the HP guideline for a Z440 to up to Windows 10? Is there anything that is not in the guideline that I should know before upgrading, like should I order a Windows 7 recovery disc before I upgrade for a back up just in case things don't go right?

[SDH]

All the Z440 and Z640 workstations we've upgraded from W7Pro64 to W10Pro64 have taken that without issue.  HP and MS work closely together so the W10 drivers MS has to upload into your workstation during the upgrade are pretty well vetted.  You can layer the W10 atop your current W7 build, and save everything, or save nothing.

You also should read DGroves recent post related to Z840 upgrade about the HP site that lets you download a HP W10 installer onto a thumb drive..... you need to provide your proper code for that box, and it has to be a box that is BIOS encoded as a MS licensed workstation rather than for Linux.

[MazdaRX7]

Can you please send me the link to DGroves recent post related to Z840 upgrade about the HP site that lets you download a HP W10 installer onto a thumb drive

What is the proper code you are responding to below?

"you need to provide your proper code for that box, and it has to be a box that is BIOS encoded as a MS licensed workstation rather than for Linux."

I bought this machine because i used one like it at work and it seemed to be bullet proof compared to consumer machines. I like that, so I want to do my best to make sure it stays bullet proof. Thank you