Boot Camp - - - - - No MAC OS any more !!!!

Q: "Where can I find the different commands to be issued at  MAC OS boot,

like Command/R (starting up in Recovery etc), for a Windows USB keyboard?"

A: The equivalent to the Mac "command" key on a Windows keyboard is the "Windows-key", i.e. the key with a MS Windows logo on it. Hence, in order to start your computer using a Windows USB keyboard, pressing and holding (!) the "Windows key" and "R" key, immediately from start. Booting from the Recovery partition might take longer than a "usual" startup, so you might have to keep the Windows+R keys pressed for a minute or two before it properly boots into recovery mode.

Hello PerLinden,

Thank you for reaching out in Apple Support Communities. I understand you aren't able to boot into your macOS drive any longer. I can help with this. I suggest you start up in Recovery and use Disk Utility to check your disk and partitions. Here's an article to help with this.

Repair a disk using Disk Utility on Mac - Apple Support

Repair a disk using Disk Utility on Mac

Disk Utility can fix certain disk problems—for example, multiple apps quit unexpectedly, a file is corrupted, an external device doesn’t work properly, or your computer won’t start up.

This topic describes how to repair the disk that started up your Mac. If you’re having trouble with another disk, you can repair it with fewer steps. See Verify a disk.

WARNING: To prevent the loss of data on your Fusion Drive, don’t connect it to a Mac that’s using a version of OS X earlier than 10.8.5. See the Apple Support article Only connect OS X Mavericks Fusion drives to OS X Mountain Lion v10.8.5 or later.

Print this page so you can refer to it later. (You don’t have access to the Disk Utility User Guide when you restart your computer in the next step.)

In the Disk Utility User Guide window, click the Share button , then choose Print.

Choose Apple menu  > Restart. After your Mac restarts (some Mac computers play a startup sound), press and hold the Command and R keys until the Apple logo appears, then release the keys.

Click Disk Utility, then click Continue.

Choose View > Show All Devices.

In the sidebar, select the disk you want to repair.

Click the First Aid button .

If Disk Utility tells you the disk is about to fail, back up your data and replace the disk. You can’t repair it. Otherwise, continue to the next step.

Click Run.

If Disk Utility reports that the disk appears to be OK or has been repaired, you’re done. You can click Show Details to see more information about the repairs. Otherwise, you may need to do one of the following.

If Disk Utility reports “overlapped extent allocation” errors, two or more files occupy the same space on your disk, and at least one of them is likely to be corrupted. You need to check each file in the list of affected files. Most of the files in the list have aliases in a DamagedFiles folder at the top level of your disk.

If you can replace a file or re-create it, delete it.

If it contains information you need, open it and examine its data to make sure it hasn’t been corrupted.

If Disk Utility can’t repair your disk or it reports “The underlying task reported failure,” try to repair the disk or partition again. If that doesn’t work, back up as much of your data as possible, reformat the disk, reinstall macOS, then restore your backed-up data.

If your Mac has a Fusion Drive and you see a flashing question mark or alert, see the troubleshooting section of the Apple Support article About Fusion Drive, a storage option for some Mac computers.

If you continue to have problems with your disk or it can’t be repaired, it may be physically damaged and need to be replaced. For information about servicing your Mac, see Find out how to service or repair your Mac.

Take care.

You have several different issues.

To switch back to macOS from Windows on a 2018 Mac, the Bootcamp Control Panel on the Windows side should work. You can also try the steps shown in Switch between Windows and macOS with Boot Camp - Apple Support .

The Bootcamp drivers were not correctly installed, if you are having issues with Keyboard/Mouse/Trackpad on a 2018 iMac.

Can you boot into Local Recovery or Internet Recovery?

About macOS Recovery - Apple Support

You can also try a NVRAM Reset and try Alt/Option to check the available selections.

Reset NVRAM or PRAM on your Mac - Apple Support

5. I can NOT start MAC OS from within Windows 10, there is (still) only one partition in Windows Boot Camp (Windows).

This is a minor problem, as I can use Command/R.

AppleControlPanel.exe is either not installed or is not functional. on a 2018 Mac, it helps recognize and APFS Macintosh HD as a bootable volume. Older Macs do not have the same capability. For example, see when are boot camp drivers going to be up… - Apple Community as an example.

The Apple wireless "Magic Keyboard" is not visible or detectable under neither MAC OS nor Windows.

The Magic Mouse works properly, so the Bluetooth Hw should be OK.

And yes, the KBD is fully charged.

And I can use a USB keyboard.

Did this keyboard work properly at any time in the past?

Loner T's hints about SMC and NVRAM (and PRAM, when used) are good. For more information about how to reset the SMC, please see How to reset the System Management Controller (SMC) on your Mac - Apple Support, and for your particular Mac model specifically the paragraph named "How to reset the SMC on Mac desktop computers" on that page. For information about how to reset NVRAM/PRAM, please see Reset NVRAM or PRAM on your Mac - Apple Support.

If resetting any of them, it's often best to reset them both; first the SMC and then the NVRAM. Doing so may occasionally do wonders, even though most often it will not help at all. In either case it only takes a few minutes and as far as I know will never do any harm, so please go ahead and try it.

Best of luck!

–Tommy Kronkvist

If you are on High Sierra or Mojave, your macOS side should be APFS, if you have a SSD. Since you have a new Mac, you can repair the drivers using BC Assistant -> Action -> Download and a USB2 flash drive.

Also, see If some Mac features don't work when running Windows in Boot Camp - Apple Support for reference.

After some failed attempts to boot into MAC OS, the KBD seemed totally "dead". Now, when I can boot into MAC OS, it can not be detected in MAC OS or Windows 10.

As a test can you reset the SMC and NVRAM and test if the Keyboard will connect. Also, if it is already available in BT preferences, remove it from System Preferences -> Bluetooth and try to re-pair it and test.

Yes Per, I'm Swedish. To be precise I am "finlandssvensk" i.e. born in Finland but Swedish is my mother-tongue. My family moved from "proper" Sweden to Finland (then belonging to Sweden) back in 1637 and has always kept Swedish as our mother-tongue. As I said I was born in Finland but I was only nine years old when my parents and I moved to Sweden (i.e. as båtflykting by Viking Line...) I now live in Uppsala but in Finland I was living in a town called Jakobstad (named after the Swedish count/"greve" Jakob De la Gardie) and during the nine years i lived there I only heard Finnish may be four or five times: everyone in the town primarily spoke Swedish. As a result I still can't speak any Finnish – except for swearing and ordering food at a restaurant... ;-)

As for Magic Keyboard and Windows 10 drivers, perhaps this may be a solution? Please note that the software on the linked page isn't free (although a free trial is available) and that I have NOT tried nor bought the software myself. Hence this is not really a recommendation on my behalf: it's merely a friendly hint until Apple's own drivers are updated. :-)