DxO PhotoLab5 Elite, Nik Collection & SupportAssist Tune Performance

As a photographer I use some software developed by DxO called PhotoLab5 Elite working in conjunction with Nik Collection, also owned by DxO. When I run the SupportAssist Tune Performance app I can no longer run Nik Collection from PhotoLab5 Elite as designed. Tune Performance is cleaning registry files, and I suspect that amongst the cleaned files is one or more which allows Nik Collection to be opened in this way. I am not the only Dell customer with this exact problem. I have an XPS 8930.

Naturally, I'm looking for a solution.

TIA