HP DC5800 SFF second hard drive

[Waggy1]

I have a 2 TB harddrive from my Acer computer with Windows 10 installed.  I just purchased a HP DC5800 SFF and was hoping to add the Acer drive to it.  It seems like there is not enough room if I want the DVD, so I removed the HP 500 GB  drive and installed the 2 TB drive.  When it started up, it seemed to correct the drivers.  I would like to run a program called Cura but it requires OpenGL to be part of the video driver and I cannot find one that works.

Should I try to install HL Windows 10 on to the 2TB drive and if so how? 

How do I get Cura to run?

I have a lot of old programs on the 2TB drive and I am afraid the software vendors will not allow me to re-install them on a different computer. 

[mdklassen]

> I have a 2 TB harddrive from my Acer computer with Windows 10 installed.  I

Unless you purchased a "retail" copy of Windows 10, and then installed it on the Acer computer, your license to run the installed copy of Windows expired when the Acer hardware expired.

You can still use the disk-drive as a "storage" disk-drive.

> just purchased a HP DC5800 SFF and was hoping to add the Acer drive to it. 

Your computer:

https://support.hp.com/us-en/drivers/selfservice/swdetails/hp-compaq-dc5800-small-form-factor-pc/365...

> It seems like there is not enough room if I want the DVD, so I removed the HP 500 GB  drive and installed the 2 TB drive. 

> When it started up, it seemed to correct the drivers. 

That is what Windows should have done -- "plug-and-play" to recognize the newly-added hardware.

> I would like to run a program called Cura but it requires OpenGL to be part of the video driver and I cannot find one that works.

 Your computer is quite old -- the HP web-site has device-drivers for Windows 2000, XP, Vista, and 7, for the following add-in video-cards:

Expansion Slot: 1 PCIe-x16 (low profile)

Graphics Adapter: Intel GMA 3100 integrated

Optional: ATI HD X2400, PCIEx16, DMS-59 and TV outputs, 256MB graphics adapter
Optional: nVidia Quadro NVS 290, 256MB, PCI-E graphics adapter
Optional: nVidia GeForce 8400 GS 256 MB video card with DMS-59 and TV (S-Video) outputs, FH 

> How do I get Cura to run?

Some of the OpenGL processing is done on the video-card, and some by the device-driver.

So, you may need to add-in a "low-profile" video-card that supports OpenGL. 

> Should I try to install HL Windows 10 on to the 2TB drive and if so how? 

You already have Windows 10 installed on the smaller disk-drive.  Is that not enough?

> I have a lot of old programs on the 2TB drive and I am afraid the software vendors will not allow me to re-install them on a different computer. 

When "installing" a program, it "invades" the copy of Windows (the one on your 2TB disk-drive).

Since you have not installed that program on the smaller disk-drive, you probably cannot just "launch" the program from the 2TB disk-drive, and expect it to run on your current copy of Windows (the one on the smaller disk-drive).

I would think that those vendors would allow the software to be installed on the "replacement" computer, given that the Acer computer is "dead".

[Waggy1]

I would have thought I could install the HP version of Windows 10 that came with the computer on to the 2TB drive and that would be legal.

[mdklassen]

>> Should I try to install HL Windows 10 on to the 2TB drive and if so how? 

HL ?????

> I would have thought I could install the HP version of Windows 10 that came with the computer on to the 2TB drive and that would be legal.

Yes, you can legally re-install the "original" version of Windows onto a different disk-drive.

Changing the disk-drive away from the originally-shipped disk-drive does not invalidate your license to run Windows.

However, that "installer" probably will WIPE OUT all the existing programs and personal files on the 2TB drive, to "restore" Windows to its "as-shipped-from-the-factory" condition.  Do you want that?

Such a "restore" will FORCE you to reinstall all your programs, which is the situation that worries you.