Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Name of Bootcamp Windows 10

Killerbob

Killerbob

macrumors 68000
Original poster
Jan 25, 2008
1,918
665
Since upgrading to Big Sur, and all throughout the betas, I have noticed that the icon and name of my Bootcamp Windows have changed to "EFI Boot" and it now has a new icon, in the Boot Menu.

If I open up "Startup Disk" in "System Preferences", it is accurately named Windows 10, but in the "Option" Boot menu, it is named "EFI Boot".

Is it possible to rename that to "Windows 10"? I know it is referring to the Bootloader used for kicking of the Windows 10 partition, but it should somehow be possible to rename that.

Thanks in advance...
 
I am also experiencing the same issue. During the first couple of betas my Big Sur drive was labeled "EFI Boot", now since maybe RC1? my Bootcamp Drive is called EFI Boot...
 
It's annoying, and my OCD is going into hypergear when I see it...
 
Killerbob said:
It's annoying, and my OCD is going into hypergear when I see it...
Click to expand...
Yes it is, also very annoying having to boot twice every time I use boot camp as it does not finish booting to windows 10 and reboots itself half way and this only happens on Big Sur, never had this on Mojave or Catalina.
 
hmmm - that sounds more like a Windows update that hasn't completed entirely. I had the asme happen to me, and eventually I realised that there was an optional update that was incomplete, and after I prompted that one again, it finished, and the reboot went away.
 
You aren't suppose to see EFI partition even though both Windows and Mac share and require it.

I am guessing somewhat but it looks like Big Sur has an on disk Recovery partition that shows in Disk Utility as grayed out. I had trouble with it during beta.
 
That's not the case with this EFI Boot we see in this case.

It is actually the Bootloader, and when we select it, it starts the Windows 10 partition and Windows starts up.
 
“EFI Boot” might be the label of the GPT partition. You can change it in Terminal while booted in Recovery:
Code: 
gpt show -l /dev/<disk>                      # show all the labels
gpt label -i <index> -l <label> /dev/<disk>  # change the label of a partition
 
I haven't tried changing the label yet because it wasn't showing "EFI Boot" on the label. Here's what I got. Do you think the second command will work?

gpt.jpg
 
No, it does not look like it. I suspect then, that the issue lies in the EFI boot loader. I have to do some searching, to see if I can come up with something.
 
  • Like
Reactions: albeedelacruz
What does it show if you use diskutil list (not necessary to do this in Recovery)?
 
same problem. Happened after upgrade to Big Sur. Windows 10 icon has become EFI Boot icon. I also can't recall but is the actual recovery partition gone now (because I don't see one)? Hoping someone has an answer to this. Kind of annoying and frustrating.
 
Last edited:
In one of the latest updates, this was fixed, and my Bootcamp Windows 10 is now called “Windows”.
 
Which update? macOS is still 11.0.1 and I don't see any available updates for Windows 10 and I still see EFI Boot as the others here.
 
hello. for me efiboot changed to windows after 11.1 update.
But MacHD is now MacHD -Data when I press Alt at boot.......
it is really strange.......
 
Killerbob said:
In one of the latest updates, this was fixed, and my Bootcamp Windows 10 is now called “Windows”.
Click to expand...
Hey Killerbob and everyone, I'm trying to get the name to be different from "Windows" using bless command (my thread) as it worked previously:
Code: 
diskutil  mount  disk0s1
bless --folder /Volumes/EFI/EFI/Boot --label "Boot Camp"
diskutil  unmount  disk0s1
It works for Windows volume on external SSD but it doesn't work for Windows volume on internal SSD.
Would you kindly have a look if it works for you and report you macOS version?
 
Sorry - I am now using a Mac Studio, and though I do have a few Mac Pros around, I only run Windows on my MS, and that is now entirely via Parallels.
 
  • Like
Reactions: tinygoblin
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back