I use 64bit version of OS, and cant change it becouse 32bit OS does not support 16GB RAM.
i check what you tell me cant run daemon.
Download the 32bit version of the core and see if that functions. 64bit operating systems can run 32 bit and 64 bt (mine's 64 and it can run both - right now, my browser is 32-bit).
Type after this if it does in the command line: "Start Control" and find where it gives information about your computer and test that it DEFINITELY is 64 bit and that something hasn't happened to your computer. Otherwise, you may need to try reinstalling windows if thsi doesn't work or restoring it from a backup (there's also an option to repair windows that you could try but run a full backup first before fiddling with the OS).