How do I restore my Mac without a startup disk?

How to use Internet Recovery to reinstall macOS

1. Shut down your Mac.
2. Hold down Command-Option/Alt-R and press the Power button.
3. Hold down those keys until you a spinning globe and the message “Starting Internet Recovery.
4. The message will be replaced with a progress bar.
5. Wait for the MacOS Utilities screen to appear.

How do I force a factory reset on my imac?

Shut down your Mac, then turn it on and immediately press and hold these four keys together: Option, Command, P, and R. Release the keys after about 20 seconds. This clears user settings from memory and restores certain security features that might have been altered.

How do you do a hard reset on an iMac?

How to Force Restart Your Mac. Press and hold down the Command (⌘) and Control (Ctrl) keys along with the power button (or the ‌Touch ID‌ / Eject button, depending on the Mac model) until the screen goes blank and the machine restarts.

How do I reset my desktop to factory settings?

🖥 How to Factory Reset a PC Navigate to Settings > Update & Security > Recovery. You should see a title that says “Reset this PC.” Click Get Started. You can either select Keep My Files or Remove Everything.

How do I Return my iMac to factory settings?

Press and hold the “Command” and “R” keys. You must depress both by the time your monitor displays a gray screen. Release them when the Apple logo appears. Click on the “Disk Utility” option in the Mac OS X Utilities window that appears after your iMac reboots.

How do you factory reset an iMac?

How to Factory Reset an iMac Via the Recovery Partition. Restart the iMac and hold the “Command-R” keys while the computer reboots. Select and connect to a Wi-Fi network from the list if the iMac prompts you to do so. Choose the “Disk Utility” option from the list and click “Continue.”.

How do you reset your computer to factory settings?

Insert the HP recovery disk. Restart the computer, and press the “F11” key. Press the “F” key to “reinstall factory settings.”. If your computer’s operating system is damaged, you may only see “perform a full system recovery” as an option.

How do I Reset my Mac mini to factory settings?

Make sure that anything you wish to keep has been saved to your new computer.