How to clear 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.

Also, how do I clear everything off my imac?

Frequent question, how do I return my Mac 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.

Also know, how do I wipe out my IMAC and start over?

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.

Subsequently, 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.I’d estimate anywhere from 1 to 5 hours would be the norm but it’s possible for it to take up to 12 hours. Make sure you erase everything securely before selling it so the buyer can’t recover your saved passwords. Several seconds if done properly: What to do before selling or giving away your Mac.

How do I do a factory reset?

1. 1 Tap Settings
2. 2 Tap General Management.
3. 3 Tap Reset.
4. 4 Tap Factory data reset.
5. 5 Tap RESET.
6. 6 Tap DELETE ALL. Please be patient as phone resetting takes some time.
7. 1 Tap Apps > Settings > Backup and reset.
8. 2 Tap Factory data reset > Reset Device > Erase Everything.

How do you restore Internet on a Mac?

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 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.

How do I restore my iMac to factory settings without CD?

How do I factory reset my iMac 2011?

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 I factory reset my 2009 iMac?

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)

Why won’t my files delete 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. Quit all open applications, and then try to empty the Trash. … If the file is locked, unlock it and empty the Trash.

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 force delete files?

To do this, start by opening the Start menu (Windows key), typing run , and hitting Enter. In the dialogue that appears, type cmd and hit Enter again. With the command prompt open, enter del /f filename , where filename is the name of the file or files (you can specify multiple files using commas) you want to delete.

Does reinstalling Mac delete everything?

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.

How long does it take to wipe a 1TB hard drive?

As estimated, to do a “full format” on a 1TB hard disk in Windows, it will take a long time, like 2- hours, and over a USB 2.0 connection, it may take a day! In contrast, to do a “quick” format is much faster, usually several minutes.