- How To Reinstall Mac Os
- How To Reformat Mac
- How To Reformat Macbook Air
- How To Reformat Mac Hd
- How To Reformat Mac Air
Update! I have updated this tutorial to include MacOS Sierra which is a free download from Apple for all Mac users.
I've owned many Macs. And thanks to my endless knack for figuring things out on my own, I've clogged up the majority of them with useless software, damaging commands, adware, duplicate files and just about anything else you can add to a hard drive to slow it to a crawwwwl.
My 2009 Macbook pro is very slow. Have cleaned up files, deleted many GB of data. Have backup on external hard drive. Operating on Yosemite. How do I safely reformat knowing next to nothing about this kind of stuff? In the macOS Utilities window, choose Disk Utility —click Continue Choose your ‘Macintosh HD' startup disk (by default) and click Erase For the macOS High Sierra and higher, choose the APFS format. For the older macOS versions, select MacOS Extended (Journaled) format or Journaled, Encrypted as an extra security option with disk encryption. If by reformat you mean erase, start up your Mac from OS X Recovery, using Command-R at startup. You will need an Internet connection to reinstall OS X. From there, select Disk Utility. From Disk Utility, erase the drive that OS X is installed on. Restart your computer. Hold the 'Command' and R keys down for a few seconds until the 'Utilities' window appears. Select 'Disk Utility' from the 'Utilities' window.
If you want to reformat Macbook Pro and get it back to what it was like right off the shelf, you've come to the right place. I just applied this process a few days ago and my laptop is running like I just opened the box from Apple. This step-by-step guide will help you preserve what's currently on the drive (for safety sake), wipe it completely clean, reinstall OS X Yosemite (or Mavericks) and make it run like the champion it should be.
This post serves as the table of the contents of this series: Reformat Macbook Pro to make brand new. https://timiragtern1986.wixsite.com/fardownload/post/mac-os-x-10-7-upgrade-free-download. You can always refer back to this table of contents for each step.
- Back up your Macbook hard drive with Time Machine
- Erase Macbook Pro hard drive securely
Are you ready? Grab the coffee. It's go-time.
What you need to reformat Macbook Pro
Disclaimer: Just be careful. Make a backup and you can rest-assured if you blow anything up you have your files. Don't force it. I'll make this as easily to understand as I can.
So here's what you'll need:
- A Macbook Pro (Duh.)
- Make sure your Mac has the juice to handle Mavericks (H/T to Neil Gee for this breakdown if you're unsure)
- Time Machine (included on all Macs)
- An external hard drive (300GB or more) with power cord and Firewire cord (or USB, Thunderbolt, etc.)
- An 8GB flash/thumb drive
- A cup of coffee (or beer, water, what have you).
- About 4 hours of your life
Once you've gathered up these things, or borrowed them from a friend, coworker or man on the street, then you're set. Keep in mind, this tutorial works for any Mac per se, it's not just a guide for Macbook Pro since the rules are generally the same. But for the sake of simpicity, and for the sake that I desperately needed to clean up my Macbook Pro, that's why we're focusing on it.
Collect the following items and you're ready for success:
Some final added notes before we begin…
Thanks, MacWorld…here's a hat tip.
Okay. I think we're ready. Click on this link to start in by backing up your data with Time Machine. It's time to make your Macbook Pro brand new again. That new computer smell? I can't help you with that. But we will make it sing like the birdies. See you on the other side.
First, don't reformat. That's a windows thing. But if you must.
power off, hold down command + r power on. Puts you in recovery mode.
Figure out what the problems is. How can i play games on my mac.
Adobe premiere pro mac problems.
Mac os macos catalina. Look into running activity monitor.
Some semi-random thoughts on addressing performance problems.
Activity Monitor
Look at what is happening with your Mac when you run Activity Monitor.
Macintosh-HD -> Applications -> Utilities -> Activity Monitor
How To Reinstall Mac Os
Look at my activity monitor image below.
You want to monitor the cpu time:
make certain:
1) little arrow appears in the %CPU column
2) little arrow is in the down direction
How To Reformat Mac
3) Activity Monitor is monitoring (All Processes)
4( Make sure that you have clicked on the cpu tab.
Use the View menu to change to All Processes if needed.
. clipped .
You can gain some understanding of Activity Monitor by looking at it every once in a while. Look at the small graph below to see the total cpu time used. See what processes are listed on top.
Here is how I have my cpu display set up for Yosemite.
AppleJack
'AppleJack is a user friendly troubleshooting assistant for Mac OS X. With AppleJack you can troubleshoot a computer even if you can't load the GUI, or don't have a startup CD handy. AppleJack runs in Single User Mode and is menu-based for ease of use.'
http://applejack.sourceforge.net/
Console
You can use the console application to examine Mac OS log files. The logs will contain information on various system processes.
Macintosh-HD -> Applications -> Utilities -> Console
How To Reformat Macbook Air
File > open console log
this will display the startup messages
How To Reformat Mac Hd
and
file > open system log
once the system is started, messages will go into the system log
How To Reformat Mac Air
Other folks
bdaqua advises running disk utility from install disk ( or recover partition ) and performing a safe boot:
https://discussions.apple.com/thread/2256611
Using the Recovery partition
Hold down command+r at boot.
http://support.apple.com/en-us/HT4718
http://osxdaily.com/2012/02/03/how-to-boot-into-os-x-lions-recovery-hd-partition /
K Shaffer advises checking for available RAM
