How to erase old imac hard drive?

1. Turn on your Mac and continue to press and hold the power button until the startup options window comes up.
2. When the Utilities window appears, select Disk Utility.
3. In the sidebar, choose Macintosh HD.
4. Click the “Erase” button, then select a file system format and enter a name for it.

You asked, how do I clear everything off my iMac?

Also the question is, how do I wipe my 2009 iMac? I am unable to erase hard drive using the following instructions: Restart iMac Holding down command and R key. Disk Utility (should be on screen) Check continue, choose start up disk,click erase button, choose Mac OS Extended, Click Erase.

Frequent question, how do you delete a file that won’t Delete on a Mac? Type in “rm -f ” without the quotation marks, and with the space after the f. Then find the file that wont delete, and drag it to the Terminal window, and the path to that item should appear. Double check that this is the thing you want to delete, then press enter.

Similarly, how do I wipe my IMAC and start over? 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.Apple considers 2009 iMacs as “Obsolete” and so should you. Many newer applications won’t even load or run on an 11 year old computer. This would include modern web browsers and that would make your computer and personal data at risk.

How do I factory reset my 2009 iMac without CD?

Select the hard drive on which Mac OS X is installed from the tree list on the left side of the window. Open the “Erase” tab. Select “Mac OS Extended (Journaled)” from the “Format:” drop menu and enter a name for the hard drive in the “Name:” text entry field. Click “Erase…” to clear all of the hard drive’s contents.

How do I restore my 2011 iMac to factory settings?

Restart your iMac by clicking the Apple menu, then select Restart…. Click the Restart button when the dialog box appears. After the iMac shuts down completely but before it begins to restart, hold down the Command (⌘) and R keys at the same time.

How do you delete something that won’t delete?

1. Method 1. Close apps.
2. Method 2. Close Windows Explorer.
3. Method 3. Reboot Windows.
4. Method 4. Use Safe Mode.
5. Method 5. Use a software deletion app.

How do you delete Undeletable files on a Mac?

1. Open Terminal.
2. Type rm followed by a space.
3. Drag the file into the Terminal window (wait for the green + sign to appear, then release the mouse button) -> Path to file should get added in the Terminal window.
4. Press Enter.

How do I permanently delete files from my Mac hard drive?

Press Option + Command (⌘) + Delete Whichever method you use, your Mac will ask to confirm that you want to permanently delete your selected file in a popup window.

How do I restore my Mac computer to factory settings?

1. Restart your computer: hold the power button > select Restart when it appears.
2. While the computer restarts, hold down the ‘Command’ and ‘R’ keys.
3. Once you see the Apple logo appear, release the ‘Command and R keys’
4. When you see a Recovery Mode menu, select Disk Utility.

How do I factory reset my iMac without password?

First you’ll need to turn off your iMac. Then press the power button and immediately hold down the Control and R keys until you see the Apple logo or spinning globe icon. Release the keys and shortly afterward you should see the macOS Utilities window appear.

How do I factory reset my iMac 2015?

1. Restart the Mac in Recovery Mode (hold down Command and the R key during restart).
2. Use Disk Utility to erase the hard drive. Click on Disk Utility > Continue. Select the main volume and click Unmount then Erase).
3. Click Reinstall OS X and Continue. Follow the instructions to reinstall Mac OS X.

Can a 2009 iMac be upgraded?

What type of storage do they support? … Apple considers the memory in the “Late 2009,” “Mid-2010” and “Mid-2011” Aluminum iMac models — all Aluminum iMacs with 21.5-Inch and 27-Inch displays and flat sides — to be a “customer installable part” but the hard drive is not intended to be upgraded by end users.

Can a 2009 iMac be updated?

According to EveryMac, it can run High Sierra 10.13. 6. This may well be sufficient for web browsing and email. However, once the OS becomes a few years old, you will start to run into compatibility problems.

Can late 2009 iMac Run High Sierra?

Mac Hardware Requirements These Mac models are compatible with macOS High Sierra: MacBook (Late 2009 or newer) … Mac mini (Mid 2010 or newer) iMac (Late 2009 or newer)