How to reinstall os x on macbook pro without disc?

1. Turn your Mac on, while holding the CMD + R keys down.
2. Select “Disk Utility” and click on Continue.
3. Select the startup disk and go to the Erase Tab.
4. Select the Mac OS Extended (Journaled), give a name to your disk and click on Erase.
5. Disk Utility > Quit Disk Utility.

As many you asked, how do I restore my MacBook Pro without a disk?

1. Set the MacBook Pro to restart.
2. Select “Disk Utility” from the next screen and click “Continue.” Choose your hard drive in the list and click “Erase.”
3. Click the “Mac OS Extended (Journaled)” option in the new dialog.

Beside above, how do I reinstall Mac OS X manually?

1. Choose Reinstall macOS (or Reinstall OS X) from the utilities window.
2. Click Continue, then follow the onscreen instructions. You’ll be asked to select your disk. If you don’t see it, click Show All Disks.
3. Click Install. Your Mac restarts after installation is complete.

Also the question is, how do I get a Mac OS X install disc? Go to the Applications folder and locate the Install Mac OS X Lion package. At this point you can either create the installation disc, or you can copy the installer to a backup location so you can create the installation disc at a later point. Right-click the installer and choose Show Package Contents.

Also, why won’t my MacBook pro reinstall OS X? First, completely shut down your Mac via the Apple Toolbar. Then, hold down Command, Option, P, and R buttons on your keyboard as you restart your Mac. Continue to keep these buttons held until you hear the Mac startup chime twice. After the second chime, let go of the buttons and let your Mac restart as normal.Click on your hard drive and select the “Erase” tab. Select “Mac OS Extended (Journaled)” from the Format pop-up menu. Type a name for your hard disk. Click “Erase.” To ensure that your data can’t be recovered, click the “Security Options” button and select a method of deletion.

How do I do a hard reset on a MacBook Pro?

1. To force a restart your MacBook, you need to press and hold down the Command (⌘) button, the Control (Ctrl) key, and the power button at the same time.
2. Hold these keys down until your MacBook’s screen goes blank and the computer restarts itself.

Does macOS reinstall delete data?

2 Answers. Reinstalling macOS from the recovery menu does not erase your data. However, if there is a corruption issue, your data may be corrupted as well, its really hard to tell. … Reinatalling the os alone does not erase data.

What does reinstall macOS mean?

2 Answers. 2. 28. It does exactly what it says it does–reinstalls macOS itself. It only touches operating system files that are there in a default configuration, so any preference files, documents and applications that are either changed or not there in the default installer are simply left alone.

How do I wipe and reinstall Mac Catalina?

1. Use the mouse pointer or the arrow keys on your keyboard to select the disk called Install macOS Catalina in the drive list that appears on the screen.
2. Once the USB drive has booted, select Disk Utility from the Utilities window, choose your Mac’s startup drive from the list, and click Erase.

How do I get OSX on my PC?

1. From the Clover boot screen, select Boot macOS Install from Install macOS Catalina.
2. Select your desired Language, and click the forward arrow.
3. Select Disk Utility from the macOS Utilities menu.
4. Click your PC hard drive in the left column.
5. Click Erase.

How do you make sure your Mac is backed up?

Make sure your Mac Pro is on the same Wi-Fi network as your external storage device, or connect the storage device to your Mac Pro. Open System Preferences, click Time Machine, then select Back Up Automatically. Select the drive you want to use for backup, and you’re all set.

How do I download OSX installer?

1. Open the App Store.
2. Go to the “Purchases” section (newer App Store versions must go to Account > Purchases)
3. Scroll down the list of Purchased items to locate the Mac OS X Installer version you wish to re-download, then click on the download button.

How do I reinstall OSX if disk is locked?

1. Power it down.
2. Hold down Option-Command-R while powering on; you can let go once you see the progress bar.
3. When the recovery window opens, go to Disk Utility.
4. Choose Erase.
5. Exit disk utility, then reinstall High Sierra.

Can’t reinstall macOS because disk is locked?

Boot to the Recovery Volume (command – R on a restart or hold down the option/alt key during a restart and select Recovery Volume). Run Disk Utility Verify/Repair Disk and Repair Permissions until you get no errors. Then re-install the OS.

How do I wipe my computer operating system except?

Press Windows Key + I, type recovery in the search bar, and select Reset this PC. Next, select Remove everything, then Remove files and clean the drive. The Windows 10 reset function can take a while to complete, but it will make sure there is no chance for anyone to recover data from your drive.

How do I wipe my computer but keep operating system?

Go to Settings > Update & Security > Recovery, and click Get Started under Reset this PC. You are then asked if you want to keep your files or delete everything. Select Remove Everything, click Next, then click Reset. Your PC goes through the reset process and reinstalls Windows.