I had hdd now i buy m.2 it's ok in hdd but when i try to install windows , installed! But not boot and in bios menu in storage showing but in boot menu doesn't
Also nothing and going to boot menu and windows boot manager not showsInstall windows with only single drive connected.
If you install on M.2 drive, then physically disconnect all other HDDs/SSDs.
After you install windows in UEFI mode, then set first boot device in boot priority to Windows Boot Manager.