This is an offshoot of the Fritzbox query.

OS is W10 32 bit, and I vaguely recall that the maximum drive size is
2TB so, if I attach an external 4TB hard disk and make 2 x 2TB
partitions, will that work and be usable as two separate 2TB drives? Son
has 64 bit system, so could set up the disk on his PC.
--
Graeme