If you've got an iMac and the keyboard isn't working, don't panic! You can still proceed with a factory reset without the keyboard. Resetting your iMac is a great way to start fresh, or address any issues you may be having with your system. Here's how to do it:
First, shut down your iMac by pressing and holding the power button until the screen goes black. Wait a few moments to let it cool down, then press the power button again to restart your Mac. When you see the Apple logo, press and hold Command-R until you see the macOS Utilities window appear on your screen.
Next, select “Disk Utility” from the list of options in the window. Click “Continue” and select “Macintosh HD” from the list of drives in Disk Utility. Click “Erase” at the top of Disk Utility and follow the prompts to confirm that you want to erase your drive. This will delete all of your files from your system, so make sure that you have backed up any important data before proceeding. Once complete, click “Done” and quit Disk Utility.
Now that your drive is erased, you can reinstall macOS on your iMac using a fresh copy of macOS or an older version if necessary. To do this, select “Reinstall macOS” from the list of options in the macOS utility window and follow the prompts to install a new copy of the operating system software on your Mac.
Once complete, reboot your Mac normally by selecting “Restart” from within the macOS utility window or by pressing Command-Q while in Disk Utility mode. Your Mac should now be completely reset without having access to a working keyboard!
Forcing a Factory Reset on an iMac
To force a factory reset on your iMac, start by opening the System Settings window from the Apple menu. in the corner of your screen. Once you're in the System Settings window, select General from the sidebar. On the right side of the window, you'll see an option called Transfer or Reset. Select that option and then click Erase All Content and Settings to begin the factory reset process. Make sure to save any important data before proceeding as this will erase all content from your computer. After clicking Erase All Content and Settings, follow any additional instructions that appear on the screen to complete the reset process.
Factory Resetting an iMac Without Logging In
To factory reset your iMac without logging in, you'll need to enter the Recovery Mode. To do this, turn off your iMac and then press and hold the Command + R keys together on your keyboard while turning the computer back on. You should see an Apple logo or a spinning globe appear on the screen.
Once you're in Recovery Mode, select Disk Utility from the macOS Utilities window and click Continue. In Disk Utility, select your startup drive (usually labeled Macintosh HD) from the left sidebar and click Erase. Choose Mac OS Extended (Journaled) as the format type and GUID Partition Map as the scheme, then click Erase. Once it's done erasing, choose Reinstall macOS from the macOS Utilities window and click Continue to reinstall a fresh version of macOS.
Once you've reinstalled macOS, you can go ahead and set up a new user account with a password of your choosing.
Resetting an Apple Computer Without Username, Password, and Original Keyboard
Resetting your Apple computer without a username and password and original keyboard can be done with the help of Recovery Mode. To do this, start by restarting your computer and holding down Command + R keys until you see the Apple logo appear on your screen. Then, select Disk Utility from the macOS Utilities menu and click Continue. Select the hard drive you want to erase and then click Erase. Once it's done, go back to the main screen and select Reinstall macOS. Follow the instructions that appear onscreen to reinstall macOS on your computer. After installation is complete, your computer will restart automatically with a fresh new version of macOS without any username or password required.
Completely Wiping an iMac
To completely wipe an iMac, you will need to start by accessing the System Settings. To do this, open the Apple Menu and select System Preferences. In the sidebar, click General. On the right side of the window, you will see the option to Transfer or Reset. Click on this option and then select Erase All Contents and Settings. This will open up a window called Erase Assistant. Enter your Administrator information to unlock it and review all of the items that will be removed in addition to your content and settings. Once you have reviewed the items, click Erase at the bottom of the window and follow any further instructions that pop up on your screen. Your iMac is now successfully wiped!
Hard Rebooting an IMAC
To hard reboot an iMac, press and hold the power button on your Mac until it shuts off. After a few seconds, press the power button again to restart your Mac. This can be useful if your computer is frozen or unresponsive, or if you're having trouble with certain programs or hardware. You may also need to try resetting the System Management Controller (SMC) in certain situations. To do this, shut down your Mac and then unplug it from the power source for about 15 seconds. Then plug it back in and press the power button to restart your Mac.
Restoring a Mac to Factory Settings When It Is Powered Off
To restore your Mac to factory settings when it is off, you will need to start the computer in Recovery Mode. To do this, press and hold the Command (?) and R keys while starting up your Mac. You will then see the macOS Utilities screen appear. From here, select Disk Utility, choose your Mac's system drive (usually named Macintosh HD), and click Erase. Once finished, you can then click Restart and your Mac should be restored to its original factory settings.