Using Nokia SDK emulator requires registration (at least for Symbian S60 3rd ed. FP2, S^3). Despite SDK is free, it asks for "username/serial" number or suggests to "load registration information from the file" after trial period. Since Nokia site shutdown it appears that new SDK users can't register it and use the emulator in development. Also one can't use serial from other machine.
Is there a way to set emulator up and running? (May be getting serial in alternative way.)
P.S. You can download Symbian SDK here.
Now we can reset the 14 day trial using simple bat file. You can run it without Admin rights. It works on both x64 and x86 Windows machines. It requires "wmic", "regini" and "reg" to work.
Tested for S60v3, S60v3FP1, S60v3FP2, S60v5 and S^3 SDKs, with Windows 7, 8.1 and 10 (and XP too as commented). It won't work in Windows 11, because Microsoft removed "wmic" tool in Windows 11.