First, I have to say that official DxO support has been hopeless - their solution is ‘buy Nik Collection 4’ even though a) this system meets the published system requirements for Nik Collection 3 and b) according to the published system requirements, that would also mean having to pay to upgrade to PhotoLab 5. Erm, no.
The first attempt at copying the files and some registry keys from the old PC, where it was working, didn’t work, but by installing a trial version in a virtual machine* (don’t want to lose my last activation!) and looking at the installation log,** some more files were copied and…
… it works, it’s been activated, and other programs (eg Serif Affinity) can see and use the various Nik Collection 3 plugins.
However PhotoLab 4 doesn’t think Nik Collection has been installed.
How do I persuade it that it has been?
“Obviously” saying “install Nik Collection 3 again” isn’t an option.
Seeing the installation process work means I can confirm that on this PC it never gets to the “Please wait while Setup is loading… verifying installer: 01%” stage, never mind later.
- Windows 10 20H2, just in case it is that this PC has 21H2 is significant.
** Fascinatingly, the Nik Collection 3 installer - when it works - checks for versions of PhotoLab up to version 10. Tell me again why version 5 is, according to the system requirements, not supported by Nik Collection 3.