Thanks, Inzone, Tripledoze and Iooniam for your replies!
@ Inzone
I would not mind risking a reinstall, as I will be getting a SSD for the first time and install Windows in there from scratch. So if anything goes wrong with the reallocation of the registry, I assume I would notice it right away (correct me if I am wrong), so it would not be a tragedy having to reinstall.
@ Tripledoze
I had thought of using a junction, but I don't think it would work:
Junction points do not work at boot, so it's impossible to redirect eg: [...] \Windows\Config
(see the
wikipedia entry).
And by the way, also "\winnt\profiles\username" for the HKEY_USERS \UserProfile should be moved, shouldn't it?
@ Iooniam
This is what I would also think using my common sense, but Niz appeared to know what he was talking about If the registry is as you say only modified when "necessary", there is no point in moving the registry.
It would be good to have the opinion of someone that knows for sure whether Niz assertion is right or wrong...