Bitcoin Forum

I have error when try to run bitcoin daemon on my Windows 10 64bit
http://prntscr.com/h5c7w2

Tell me the os is not supported for daemon why?

Is your computer 32 bit or 64 bit?

If you don't know.
type in the command line "cd C:\Windows\SysWOW64" if it moves to that folder, then it is. If not, you aren't running windows 64bit.

Whether you are or not running 64 bit OS. I'd recommend yousue the 32 bit version just to test if that works.

Good Point @jackg,

have you tried the 32Bit Client? In your Screenshot you are in the wrong Systemfolder (system32). Try to execute the same command in the SysWOW64 folder as jackg mentioned.
(By the Way, your Windows Build Version is available for both, 32Bit and 64Bit Versions.)

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).

It has nothing to do with 32bit or 64bit... -daemon basically attempts to launch bitcoind as a background daemon task in Linux (and possibly OSX given its Unix-like nature)...

This functionality is NOT available in Windows. I believe it would require that the Windows port of bitcoind was specifically coded to be able to be run as a "service" within Windows.

The error you are seeing is telling you exactly what the issue is... The -daemon option is unavailable on your OS (ie. Windows). It is an OS limitation.

Either don't use that option, or go and Google "run application as a windows service" if you want to run bitcoind completely in the background without the command prompt window open.

This happened to me recently in Windows 10. In Windows 7, the command prompt window would just stay in the task bar as bitcoind ran until you stopped it via bitcoin-cli stop

I don't know what changed, but I get the same error. I tried changing compatibility to lower OS like Windows 8 and Windows 7, but no change in behavior.

Very Odd.

Error: -daemon is not supported on this operating system

I think it's that you have to make bitcoin core a service in Windows (not entirely sure how to do it as I haven't yet, probably somewhere online there'll be a good tutorial for it however).