The issue came after having installed using the default values, so my libraries were initially installed on drive C, then I uninstalled them and changed the path to an external drive (D).
I followed the indications on your website so the biggest files would be the ones that should be moved to the external drive (I really made sure this was the case and I have experience with PCs so I'm 100% sure there was no mistake from my part in this sense). But when I re-installed the libraries they would again be installed on drive C instead D, where I wanted them to be.
I did some research on the internet and it seemed to be a known issue and some people even had to make manual changes in Windows registry editor for this to work as expected, that shouldn't be something the user have to do manually but a task for Arturia Software Center.
I am using Windows 11 on a high end PC.
Also I have to add that I couldn't open a regular ticket because I was paying the V Collection through Splice using the rent-to-own option and Splice won't deliver a serial number until the full payment is done, which is fine, but your website requires a serial number for every simple inquiry, which I think is not a customer friendly practice since you offer your product through Splice but no support for people who are already paying for these products due to that requirement.