Daniel Hruska You've decided you don't want to update your system and all kinds of data accumulated over the past months or years? A clean install offers an alternative to all apple growers who want to use a new, fresh, fresh and fast system. Although OS X does not suffer as dramatic a performance degradation as, for example, Windows, a certain decrease in speed can be noted.
First you need to download Mountain Lion from Mac App Store and create installation media, whether it's a DVD or a USB stick. If you don't know how to do it, read ours simple instructions. Once you have the installation package ready, don't forget to backup all your data. Either manually copy them to an external drive or use Time Machine. However, if you want to have a really new system, I recommend a manual backup. Although you will have a lot more work to do with it, you can be sure of a really clean OS X.
Problems can sometimes be caused by the library in iTunes - due to synchronization with iOS devices. Maybe there is a better and official method, but my own method worked well for manual library transfer. I simply copy the entire folder /Users/username/Music/iTunes, which houses all backups, iOS apps, and other data. After installing the system, just copy this folder back to the same location, as well as place music, videos, books and other library contents in the original directory. Before you launch iTunes, hold the ⌥ key and click the button Select a library. Then in the directory /Users/username/Music/iTunes select the file iTunes Library.itl.
If you have everything you need stored away from the primary drive, insert the installation media and restart your Mac. Hold the ⌥ key while booting, after a few seconds a list of drives capable of booting the system will appear, so select your DVD drive or USB stick (depending on which one you chose to install). After that, the installation wizard itself will appear.
Since you want to use a completely new system, you must erase the disk first. So run it Disk Utility, select your drive and in the tab Delete set at the box Format from the file systems menu Mac OS Extended (Journaled). The formatting itself will take a few tens of seconds at most, after which everything will be ready for installation. Then close Disk Utility.
From the installer's main menu, select Reinstall OS X. You will be presented with the license terms, which you must agree to continue with the installation. The next step is to select the language mutation and the target disk (this is the one you formatted). It will now start copying the necessary installation files to disk. So go make some coffee and come back in a few minutes. After copying and extracting the necessary files, the computer will automatically restart.
Now comes the time when the installation will not move anywhere without a human hand. It is necessary to set the most important parameters such as: language, time zone, restoring from Time Machine, connecting wireless mice and keyboards, connecting to a wireless network, logging in with an iCloud account, or creating a local account and other details. Because a picture is sometimes worth a thousand words, check out the steps I had to work my way through with the Mac mini.
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I want to ask how it looks with the spell check after such a clear installation? Are the dictionaries already added or do I have to install them again myself?
Spell check is gone after the upgrade. And it can't be installed because it's not downloaded from the AppStore :-(
What if I have two partitions on my HDD - one for OS X and the other for Win7 (bootcamp). Is it possible to format only the partition with OS X during a clean installation, or do I have to make a backup of Win and after a clean installation use the bootcamp wizard again and reinstall Win as well?
I would also be interested in this.
I would really like to do a clean install, but disk utility on Lion just says: Unable to restore, invalid argument
I have the same problem.
Also same problem
It gave me the same problem, but the system is ready for installation on the flash drive.
How much will the system speed up on average? Do you need a percentage? It is probably quite individual, but I would be interested to know if it makes sense to do a clean installation. Thank you
Personally, I don't think the system is faster, so Lion already ran briskly thanks to 8GB of RAM and an SSD disk. I have a MBP 13″ mid 2010. But I notice other things. Battery life approx. 3 hours. Previously with the same open windows 5 hours. In addition, my laptop heats up more and the fan can be heard more. :(
and now I noticed that the battery says "Hand over the battery for repair" it has 220 charging cycles. Everything was fine with Lion. What is it like?
PMU and PRAM reset
resetting the PMU and PRAM did not help, I unscrewed the laptop and disconnected the battery. Only then did the message disappear.
Hmm, the "user" impossibility of disconnecting the battery lives on!
And everyone says how user-friendly app products are.
After installing the iMac, I don't start it, only an apple with a wheel appears, I see it for service, do you have any experience with it, how to start it??? I have a new Mac that is about half a year old, but the new Lion completely screwed up my Mac
Hello,
I have a 20″ Imac and MAC OS X 10.5.8 on it. If I follow the clean install procedure described here, can I install OS X Mountain Lion without problems???
Alternatively, what and how will I need it?
Thanks.
I tried a clean install but ran into a problem
When I try to install already purchased applications in the App Store (Purchases tab), it says Installed and I can't install them again in a brand new installation :(
What should I do with it? I don't want to buy already purchased apps again :(
Hi, I have a macbook air and I'm installing OS X mountain lion. but then it says: There are currently other users logged in. Everyone must be logged out before installing OS X. What should I do? Thanks