[Solved] DJM900nexus Setting Utility constantly crashing

For the last few months I have experienced occasional issues with the "DJM900nexus Setting Utility" crashing. Unfortunately this happens mostly when I am recording a mix.

Now I can't even get the PoS to work at all.

I have completely uninstalled RekordBox and all drivers, installed the 64bit version and the issue remains.
I've even gone as far as blitzing my machine completely, reinstalling Windows10, ensuring that only 64bit RB is installed - and still the same...

There's nothing in the event viewer, the service won't stop unless I disconnect the USB lead from the DJM...

Anyone have any bright ideas apart from to not connect the DJM to my machine via USB?

Machine specs:

8-core AMD 3.1Ghz CPU
16Gb RAM
SSD HDD
Windows10 Pro

All latest drivers from Pioneer installed...

Getting frustrated as this is meaning I cannot reocrd any mix, and I really do not want to go back to using analog cables between my DJM & Sound Card