High Sierra or Mojave Update

[Smith07]

How can I update to High Sierra or Mojave. I am running dual boot systems on separate hard drives (Mac +Windows). Do I have to disconnect the Windows hard drive while I am updating Mac OS?

 

[Stork]

See the sticky threads in the Multi Booting forum section > https://www.tonymacx86.com/forums/multi-booting.153/