How to erase my 2011 imac?

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 know, how do I factory reset my iMac 2011 without the disk?

Also the question is, 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.

People ask also, 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.

1. Reboot the Mac and right after the boot chime sound, hold down the COMMAND + R keys together to boot into Recovery Mode.
2. Once in Recovery Mode and at the “macOS Utilities” (or “OS X Utilities”) screen, select “Disk Utility”

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 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.

Why can’t I delete things on my Mac?

If you cannot delete an item in Mac OS X, try the following: Check to see if the file (or a file within the folder) is being used by an application. … If the file is locked, unlock it and empty the Trash. Note that you won’t be able to delete a folder if even one file in it is locked.

How do I restore my Mac computer to factory settings?

To reset your Mac, first restart your computer. Then press and hold Command + R until you see the Apple logo. Next, go to Disk Utility > View > View all devices, and choose the top drive. Next, click Erase, fill out the required details, and hit Erase again.

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.

How do I factory reset my Mac desktop 2010?

1. Insert the Mac OS X Install disc, then restart the computer while holding the C key.
2. When your computer finishes starting up from the disc, choose Disk Utility from the Installer menu.
3. Click the Erase tab.

How do I factory reset my MacBook Pro 2011?

To do so, shut down your Mac, then turn it on and immediately press and hold four keys together: Option, Command, P, and R. You can release the keys after 20 seconds or so. That’s it!

How do I factory reset my iMac Sierra?

1. Start up your computer in macOS Recovery:
2. In the Recovery app window, select Disk Utility, then click Continue.
3. In Disk Utility, select the volume you want to erase in the sidebar, then click Erase in the toolbar.

How do I restore my 2009 iMac to factory settings?

1. Shutdown iMac.
2. Unplug power cord from back of iMac.
3. Press and hold power button for 20 seconds.
4. Restore power cord; power on iMac.
5. Immediately on hearing Startup Chime, press and hold Command-Option-P-R keys (⌘⌥ P R)