Abouth 5 years ago when I bought my previous laptop, it came installed with a lot of "good stuff". One of that was some kind of eSecurity application, which was so secure that it prevented ArchiCAD from writing into its own application folder that it itself created during installation.
In my case I just uninstalled that bloatware and my computer never missed it, ArchiCAD worked fine from that point on.
That porduced similar phenomenon: ArchiCAD could never make it past the splash screen.
So preventing access to folders could also be a reason. You may need to check that too (or the system admins).
Loving Archicad since 1995 - Find Archicad Tips at x.com/laszlonagy
AMD Ryzen9 5900X CPU, 64 GB RAM 3600 MHz, Nvidia GTX 1060 6GB, 500 GB NVMe SSD
2x28" (2560x1440), Windows 10 PRO ENG, Ac20-Ac28