As the title says, gameguard currently doesnt support that build and either those people in INCA inc update their gameguard or wait for the next build. Stay in build 10240 or below 10580.
can seal online run in windows 10? YES IT CAN.
I am posting this using WIN 10 Home 64 bit. I have confirmed that WIN 10 PRO build 10240 works too. just dont upgrade to build 10586