There are other activated processes which disturb the installation process

I am trying to install my old Nuendo 3 (32 bit) on a Windows 10 Dell laptop. I have Nuendo 3 on my desktop computer (Windows 10) as well as my Cubase 11, so I know this is possible. Both are on my Steinberg Dongle.
When I try to install it on my Dell Laptop (Windows 10) without, or with the dongle plugged in, I get the message above. I have tried in XP compatibility mode, I have turned off all background apps, but the message still comes up. Elcencer is installed, updated and scanned successfully on the laptop. My Cubase 11 installed successfully on the laptop, obviously using the Steinberg Downloader. Nuendo 3 I understand has discontinued support from Steinberg, so I used the original installer from the CD witch I copied to the laptop hard drive.
Any ideas?

For something that old I might actually try running it in an XP virtual machine. VMWare should be able to pass the dongle in to the VM so it can work with it (you can disconnect USB devices from the host and hook them to a VM). It is old enough that I don’t know if you’ll get it to work on a modern system.