Upgrade to W10 from W7 re-installed in Legacy mode

[dbvogt]

Had a HD crash last year in a 2015 era desktop and a good repair shop reinstalled W7 on a new HD to boot in Legacy mode. There is no longer a recovery partition.

Should W7 have been re-installed in UEFI?

I have a W10 ISO created when upgrades were free. Can I use it to upgrade as of April 2019?

If so, will W10 figure out to installl itself in UEFI mode or do I tell it to?

What happens to my files on the C drive, will they get trashed?

As an aside, I ordered the 3 set recovery CDs for the desktop and decided boot from them out of curiosity.  The first screen shows Recovery Manager and asks if there any additional disks. Unfortunately, neither the keyboard nor mouse functions at this point so the disks are worthless. Comments?

[Grzwacz]

Greetings,

Welcome back to the forum.

I am not a HP employee.

W7 should have been installed in UEFI mode.

The upgrade to W10 is still on. You may have to do an upgrade. You can't install a clean copy of W10 unless you had previously done a W10 upgrade on your PC.

The W10 boot media has to be capable of installing in UEFI mode. You also have to boot to this media in UEFI mode to do a UEFI installation.

Your motherboard has a chipset which supports W7. I have no idea why you have no mouse and keyboard support. Are you connecting the mouse and keyboard to USB 2.0 ports?

The HP Recovery media should provide mouse and keyboard drivers if the MB does not support legacy USB 2.0 support.

Regards