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Do you have a spinning rainbow wheel on your monitor too often? The solution is a complete reinstall or you can use our tutorial which can save several hours of your time.

In this article, I will describe solutions to the most common problems I encountered when upgrading to Mountain Lion. In practice, I have met dozens of well-functioning older MacBooks and iMacs with OS X Lion or Mountain Lion, and there is no reason not to switch to them. Computers behaved very well after adding RAM and possibly a new disk. I can recommend upgrading to Mountain Lion. But. There is a small one here SALE.

Noticeable slowdown

Yes, often the computer becomes noticeably slower after upgrading from Snow Leopard to Mountain Lion. We won't waste time figuring out why, but we'll jump straight to the solution. But if we used Snow Leopard and installed a few applications and downloaded a few updates, then the computer usually slows down noticeably after upgrading to Lion. The first impression is usually due to the internal "mds" process that it is responsible for Time Machine (& Spotlight), which scans the disk to see what it has available. This initialization process may take a few hours. Which is usually the time in which less patient individuals will sigh and declare their Mac to be unsatisfyingly slow. The more data we have on the disk, the longer the computer will index the files. However, after the indexing is finished, the computer usually does not speed up, although I cannot explain the reasons, but you can find the solution below.

Facts and experiences

If I use Snow Leopard for a long time and upgrade to Mountain Lion using the standard installation procedure via Mac App Store, the Mac usually slows down. I encountered this repeatedly, most likely this problem bothers most users. I experienced a quad-core Mac mini that processed any effect in Aperture for tens of seconds, the rainbow wheel was on the display more often than was healthy. A dual-core MacBook Air 13″ with 4GB RAM had the same effect with the same Aperture library done in under a second! On paper, a weaker computer was several times faster!

The solution is to reinstall

But reinstalling is not like reinstalling. There are several ways to reinstall the system. I will describe here the one that has worked for me. Of course, you don't have to follow it to the letter, but then I can't vouch for the result.

What you will need

A hard drive, a USB flash drive, a set of connection cables, an installation DVD (if you have one) and an Internet connection.

Strategy A

First I have to backup the system, then format the disk and then install a clean system with an empty user. Then I create a new user, switch to it and gradually copy the original data from Desktop, Documents, Pictures and so on. This is the best solution, laborious but one hundred percent. In the next step, you will need to activate iCloud and, of course, all settings, applications, and reset passwords on websites. We also need to install apps and update them. We start with a clean computer with no history and no skeletons in the closet. Pay attention to the backup, a lot of things can go wrong there, you will find more later in the article.

Strategy B

My customers don't have a computer for gaming, they mostly use it for work purposes. If you don't have a sophisticated password system, you won't be able to get your computer up and running quickly enough. Therefore, I will also describe the second procedure, but two out of ten reinstallations did not solve the problem. But I don't know the reasons.

Important! I will assume that you know very well what you are doing and what the consequences will be. It's definitely worth a try, I have an 80% success rate.

As in the first case, I have to back up, but preferably twice on two disks, as I describe below. I'll test the backups and then format the drive. After the installation is complete, instead of creating a new user, I choose Restore from a Time Machine backup. And now it's important. When I load the profile, I see a list of what I can install when restoring from a backup disk. The less you check, the more likely it is that your computer will actually speed up.

Approach:

1. Backup
2. Format the disk
3. Install the system
4. Restore data from backup

1. Backup

We can back up in three ways. The most convenient is to use Time Machine. Here you need to check that we are backing up everything, that some folders are not being left out of the backup. The second way is to use Disk Utility to create a new image, i.e. create a disk image, a DMG file. This is a higher girl's, if you don't know, you better not bother with it, they are going to do irreversible damage. And the third backup method is barbaric copying of files to an external drive. Brutally simple, brutally functional, but no history, no passwords, no profile settings. That is, laborious, but with the maximum chance of acceleration. You can also manually back up several system components, such as e-mails, Keychain and the like, but this requires not a little experience, but a LOT of EXPERIENCE and definitely google skills. I recommend using a complete backup via Time Machine, this can be done by most users without much risk.

2. Format the disk

It's not working, is it? Sure, you can't format the drive you're currently loading data from. Here it is important to know exactly what you are doing. If you're not sure, trust the experts who have done it repeatedly. Salespeople don't necessarily have to be experts, want someone who has done it a few times. Personally, I first test whether it is possible to load the data from the backup, because I have already crashed twice and sweated badly. Don't want to experience that moment when you delete someone's 3 years of work and all their family photos, and the backup can't be loaded. But to the point: you need to restart and press the key after the restart Alt, and select Recovery 10.8, and if even then it is not possible to format the internal disk, you need to start the system from another (external) disk and only then format the disk. This is the moment where you can lose a lot again, really think twice about spending a few hundred on the work of an expert and entrusting yourself to someone who REALLY CAN do it.

3. Install the system

If you have an empty disk, or you have replaced it with an SSD, you need to install the system. First you have to start, boot. For this you need the mentioned Recovery disk. If it is not already on the new disk, it is necessary to make the bootable USB Flash disk operational beforehand. This is where I warned at the beginning of the article that you really need to know exactly what you're doing. If you format the drive and can't boot, you're stuck and need to find another computer. Therefore, it is better to have experience and two computers and know exactly what you are doing and how to get out of any problems. I solve it with an external disk where I have an installed system from which I can boot a fully functional Mac OS X. It's not a voodoo magic, I just have five of those disks and I use one of them for computer service. If you are doing this for the first time and only once, it is too much work for me to explain and those who know what I am talking about have something like this.

4. Restore data from backup

I use two methods. The first is that after installing the system on a clean disk, the installer asks if I want to restore data from a Time capsule backup. This is what I most often want and I will select the entire user and leave out the applications that I like to install most from the App Store and possibly from downloaded installation DMGs. The second way is that I create an empty Install or Admin profile during installation and download the updates after the system boots, but be careful – I have to install the iLife applications separately! iPhoto, iMovie and Garageband are not part of the system and I don't have an installation disc for iLife unless I bought them separately via the App Store! The solution is to load the data from the backup by returning the installed applications as well, but by doing so I risk not speeding up the system and maintaining the original error and thus the "slowness" of the system.

I emphasize that many mistakes can be made during reinstallation. So it is better to trust in the hands of experienced professionals. Really advanced users can use this tutorial, but beginners with a slow Mac should have someone on hand to help them when "something goes wrong". And I will add a technical note.

Mac OS X Leopard and zombies

When I upgraded from Leopard to Snow Leopard, the system went from 32-bit to 64-bit, and iMovie and iPhoto became noticeably faster. So if you have an older Mac with an Intel Core 2 Duo processor, be sure to reinstall Mountain Lion with 3 GB of RAM. If you do it right, you will improve. Computers with G3 and G4 processors can only do Leopard, Lion or Mountain Lion cannot really be installed on G3 and G4 processors. Attention, some older motherboards can only use 4 GB of RAM out of 3 GB. So don't be surprised that after inserting 2 pieces of 2 GB (total 4 GB) modules into a white Macbook, only 3 GB of RAM is displayed.

And of course, you get even more speedup by replacing the mechanical drive with an SSD. Then even 2 GB of RAM is not such an insurmountable problem. But if you play with video in iMovie or use iCloud, an SSD and at least 8 GB of RAM have their magic. It's definitely worth the money, even if you have a MacBook with a Core 2 Duo and some basic graphics card. For effects and animations in Final Cut X, you need a better graphics card than iMovie, but that's on a different topic.

What to say in conclusion?

I wanted to give hope to anyone who thinks they have a slow Mac. This is a way to really speed up your Mac to the max without buying new hardware. That's why I fought so hard against various improvements and accelerator programs in this article.

You can't make your Mac faster by installing extra software on it. Howgh!

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