Reverted back to Maverick from Yosemite - extremely slow

I just spent an entire weekend reverting from Yosemite back to the previous operating system. This was the worst upgrade I have ever experienced with Apple. As it was, with Time Machine backup, it worked to restore but I lost files even though. I would like to know when will it be safe to upgrade if ever. I felt like a test-case for Apple. I should have stayed with my system because it worked great before and very fast. This upgrade is not for everyone and I want to make sure people are warned. Some may experience nothing but good, but for me it was not!!
my system: MacBook Pro
Memory: 8 GB
back to : 10.9.4
processor: 2.2 GHZ intel core 17
symptoms after upgrade to Yosimite: extremely slowness to crawling. Adobe creative software suite upgrades would not install and stalled at 42%
I fixed all that by reverting and using cleaner application from Adobe.

Yosemite/OS X Mavericks: Revert to a previous OS X version

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Problem with itunes after reverting back to mavericks from yosemite

I can't get iTunes to open my library after reverting back to Mavericks from the beta Yosemite. It says "iTunes cannot open this library because it was created with a newer version of iTunes." It then asks if I want to download the latest version and when I click download it takes me to the app store and says that I have the latest version. Which was downloaded when I was running Yosemite. I even downloaded the latest version from the website and it still won't open the library.
Any ideas?
Thanks in advance for your input.
Bob

I don't know which actual versions you are seeing because I don't have Yosemite. You're not really supposed to discuss any issues related to beta test versions on the open forums. I believe there is an iTunes 12 out in beta which may have been what you were running. You don't say how you reverted to Mavericks.
The underlying issue is the file called "iTunes Library.itl" Once you open it with a newer version it can no longer be opened by an earlier version. However, when you do an upgrade it makes a copy of the older version and you can rename this to make a file which can be opened with the older iTunes. However, this will not reflect any changes made to your library. Any media added will still be present in the media folder but it will have to be added to the old library.
https://discussions.apple.com/message/20401436#20401436 - turingtest2 11/2012 post on rebuilding empty/corrupt library from previous iTunes library file after upgrade/crash.
iTunes: How to re-create your iTunes library and playlists - http://support.apple.com/kb/ht1451
Beta software testers are advised not to run software on their main computers, and will usually be familiar with how to restore to older versions and the working of computers. The new public beta with Yosemite is a change in behavior for Apple but of course means a lot of people want to be a tester but don't really know what that means.

Any way to go back to Mavericks from Yosemite?

Does anyone know if it is possible to uninstall Yosemite and go back to Mavericks? I did not realize that the handoff feature wouldnt work with my iMac and Yahoo messenger doesnt work with Yosemite and some other apps I use so I was wondering if it was possible to revert back to Mavericks?

Sure. First, get out your backup of your Mavericks system installation. Boot from it and erase your hard drive. Now clone or otherwise restore your Mavericks backup. If you have a machine from 2011 or later, then you can try:
Install Mavericks, Lion/Mountain Lion Using Internet Recovery
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
Boot to the Internet Recovery HD:
Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
Partition and Format the hard drive:
Select Disk Utility from the main menu and click on the Continue button.
After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Click on the Partition tab in the DU main window.
Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
Reinstall Lion/Mountain Lion. Mavericks: Select Reinstall Lion/Mountain Lion, Mavericks and click on the Install button. Be sure to select the correct drive to use if you have more than one.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
This should restore the version of OS X originally pre-installed on the computer.

How to go back to Mavericks from Yosemite?

Just recently upgraded to Yosemite and I absolutely hate it. I want to go back to Mavericks, but can't seem to do so. Please give me different options, along with detailed steps, to revert back to Mavericks. Thanks.

You must have a fully bootable Mavericks system from which to boot the computer. You can then erase the volume with Yosemite, then clone the Mavericks system to the empty volume you just erased.
You can erase the drive and reinstall Mavericks if you have a USB Mavericks installer flash drive.
You can boot the computer via Internet Recovery and reinstall the original version of OS X that came with the computer. This is only feasible on models from 2011 to the present.
OS X Mavericks- Revert - Downgrade to a previous OS X version also applies to Yosemite.

How do I go back to mavericks from Yosemite without a back-up

Help! I need to go back to Mavericks from Yosemite

I just purchased the laptop and upon set up I updated everything without doing a back up. But now I need to go back to using Mavericks. How do I do so, without a back up? I have no worries of losing any important files, as the laptop is brand new and I haven't done anything on here yet. But I do need to return to Mavericks. Any help is greatly appreciated. Thank you.

How to back to maverick from Yosemite

I have iMac2008 & 2007. In 2007 I still have Maverick but I have changed the 2008 to Yosemite.
I would like to transfer Maverick from 2007 to 2008 iMac because ever since I changed to Yosemite my computer crashed.
Therefore; I would like to go back the 2008 Mac to Maverick.
Is anyone know that I can do that?

if the recovery disk is already at Yosemite it will restore it to Yosemite.
if the mac was originally purchased on mavericks if you do an internet recovery then it should revert back to the os that it was originally purchased with this can be done by holding command + option + r
it will boot into internet recovery and follow the process the same from there

Is it possible to go back to Mavericks from Yosemite

A lot of my photography software (especially Photoshop plug-ins) no longer work with Yosemite.
Is it possible to use a Time Machine backup before Yosemite came out to restore Mavericks?
Thanks.

Hi Brentmeister,
I think you may find the information in the following resource helpful:
OS X Yosemite: Revert to a previous OS X version
http://support.apple.com/kb/PH18846
- Matt M.

How do I revert back to Lion from Mavericks?

How do I revert back to Lion from Maverick? Maverick does not support our server.

If you do end up needing to go the erase and re-install route because you do not have current backup to restore from, ensure that you make a clone or Time Machine copy of your current setup before doing the erase and re-install of Lion as the erase process will delete all your data.

HT201364 How can I revert to OS MAVERICK from OS YOSEMITE on my Mackbook Mid 2010?

How can I revert to OS MAVERICK from OS YOSEMITE on my Mackbook Mid 2010?

Do a backup, preferably 2 separate ones on 2 separate drives.
Revert to a Previous OS X - Yosemite
Revert Yosemite to Mavericks
If you do revert, I'd use Setup Assistant to restore your data. This process takes a while, so do it when you won't need the computer for several hours, based on my experience.

Yosemite extremely slow. Cannot stop pop up windows

Yosemite extremely slow. Cannot stop pop up windows on any browsers. Considering going back to Maverick My iMack is mid 2011 21.5. I cannot find a solution to this problem

Helpful Links Regarding Malware Problems
If you are having an immediate problem with ads popping up see The Safe Mac » Adware Removal Guide and AdwareMedic.
Open Safari, select Preferences from the Safari menu. Click on Extensions icon in the toolbar. Disable all Extensions. If this stops your problem, then re-enable them one by one until the problem returns. Now remove that extension as it is causing the problem.
The following comes from user stevejobsfan0123. I have made minor changes to adapt to this presentation.
Fix Some Browser Pop-ups That Take Over Safari.
Common pop-ups include a message saying the government has seized your computer and you must pay to have it released (often called "Moneypak"), or a phony message saying that your computer has been infected, and you need to call a tech support number (sometimes claiming to be Apple) to get it resolved. First, understand that these pop-ups are not caused by a virus and your computer has not been affected. This "hijack" is limited to your web browser. Also understand that these messages are scams, so do not pay any money, call the listed number, or provide any personal information. This article will outline the solution to dismiss the pop-up.
Quit Safari
Usually, these pop-ups will not go away by either clicking "OK" or "Cancel." Furthermore, several menus in the menu bar may become disabled and show in gray, including the option to quit Safari. You will likely have to force quit Safari. To do this, press Command + option + esc, select Safari, and press Force Quit.
Relaunch Safari
If you relaunch Safari, the page will reopen. To prevent this from happening, hold down the 'Shift' key while opening Safari. This will prevent windows from the last time Safari was running from reopening.
This will not work in all cases. The shift key must be held at the right time, and in some cases, even if done correctly, the window reappears. In these circumstances, after force quitting Safari, turn off Wi-Fi or disconnect Ethernet, depending on how you connect to the Internet. Then relaunch Safari normally. It will try to reload the malicious webpage, but without a connection, it won't be able to. Navigate away from that page by entering a different URL, i.e. www.apple.com, and trying to load it. Now you can reconnect to the Internet, and the page you entered will appear rather than the malicious one.
An excellent link to read is Tom Reed's Mac Malware Guide.
Also, visit The XLab FAQs and read Detecting and avoiding malware and spyware.
See these Apple articles:
Mac OS X Snow Leopard and malware detection
OS X Lion- Protect your Mac from malware
OS X Mountain Lion- Protect your Mac from malware
OS X Mavericks- Protect your Mac from malware
About file quarantine in OS X
If you require anti-virus protection Thomas Reed recommends using ClamXAV. (Thank you to Thomas Reed for this recommendation.)
These may be helpful in improving Yosemite's performance.
Try these in order testing your system after each to see if it's back to normal:
1. a. Resetting your Mac's PRAM and NVRAM
    b. Intel-based Macs: Resetting the System Management Controller (SMC)
2. Restart the computer in Safe Mode, then restart again, normally. If this doesn't help, then:
Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the Utilities menu screen appears. Alternatively, restart the computer and after the chime press and hold down the OPTION key until the boot manager screen appears. Select the Recovery HD and click on the downward pointing arrow button.
3. Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the Utilities menu. Repair the Hard Drive and Permissions as follows.
When the recovery menu appears select Disk Utility. After DU loads select your hard drive entry (mfgr.'s ID and drive size) from the the left side list. In the DU status area you will see an entry for the S.M.A.R.T. status of the hard drive. If it does not say "Verified" then the hard drive is failing or failed. (SMART status is not reported on external Firewire or USB drives.) If the drive is "Verified" then select your OS X volume from the list on the left (sub-entry below the drive entry,) click on the First Aid tab, then click on the Repair Disk button. If DU reports any errors that have been fixed, then re-run Repair Disk until no errors are reported. If no errors are reported click on the Repair Permissions button. Wait until the operation completes, then quit DU and return to the main menu. Select Restart from the Apple menu.
4. Reinstall Yosemite: Reboot from the Recovery HD. Select Reinstall OS X from the Utilities menu, and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.
5. Reinstall Yosemite from Scratch:
Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
How to Clean Install OS X Yosemite
Note: You will need an active Internet connection. I suggest using Ethernet if possible
            because it is three times faster than wireless.

HT201232 Is it possible to convert to Mavericks from Yosemite without a Mavericks backup?

I have a 2011 MacBook Pro and recently downloaded Yosemite. Turns out this was a horrible idea and my computer cannot handle the new software properly. I want to revert back to Mavericks, which was running wonderfully with few issues. I have not done a backup, and just ordered an external hard drive to use Time Machine with. I was wondering if it is possible for me to revert to Mavericks if I only have backups of the current Yosemite files/settings. I am not worried about keeping apps and their data (the most important stuff is in iCloud) but am more focused on my files, which I know I can back up to the external hard drive. I want to know if I can actually revert to Mavericks without killing my computer. I'm a recent college grad and don't have a spare $2500 laying around to spend on a new computer, which would be the ideal fix (it's been slow for a while anyways). Help please!

If you have no TM backup with Mavericks but you updated to Mavericks from say Mountain Lion then go to the app store under purchases and see if it will show Mavericks. You may be able to download and install. Be sure to save your files first. You could do an internet recovery (command-option-R) boot and it will install what came with your Mac (e.g. ML) then you can then update to Mavericks from the your purchases it it shows up there.

How can I Revert back to IOS7 from IOS8?

Hi Folks,
Is there a way that I can revert back to IOS7 from IOS8 after install on both iPhone and an IPad?
I did not back up either of these devices before doing the upgrade.
I know I should always back up before any updates, but I'm hoping the fact that I did not might be of help in my case.
Any help would be appreciated.
BTW: why do I want to do this? Ever since going to IOS8 my devices have become much slower to start up and also seem jerky during operation.
I have two iPhone 4S's and one iPad

Note that what Allan is suggesting is a way to resolve your issues. It will not downgrade your software version.

Since upgrading to Mavericks, Mail is extremely slow to load preview pane or show email when mailbox is double-clicked. Is this a known issue?

Since upgrading to Mavericks, Mail is extremely slow to load the preview pane or show email when mailbox is double-clicked. Is this a known issue? Or is there a solution to this issue?

Hi AngieLynch,
Thanks for visiting Apple Support Communities.
It sounds like you're seeing some unexpected behavior in Mail.
Before troubleshooting on your computer, I'd strongly recommend backing up your data to an external hard drive with Time Machine, if you haven't already. This article can help with setting up Time Machine:
Mac Basics: Time Machine backs up your Mac
http://support.apple.com/kb/ht1427
Next, try creating a new user account on your computer. You can add your email account to Mail in the new user account. If Mail is more responsive in the new user account, then Mavericks is working fine and the behavior is caused by conflicts in your own Mail or user account.
These articles walk you through creating a new user and setting up Mail:
OS X Mountain Lion: Create a new user account (applies to Mavericks, too.)
http://support.apple.com/kb/PH11468
Configuring Mail for your email account
http://support.apple.com/kb/HT1277
Best,
Jeremy

How return OX S Mavericks from Yosemite

Originally my MacBook Air is OX S Mavericks,and I did the update to Yosemite.How can I return to OX S Mavericks From Yosemite?

Time Machine or a clone should back you up.
Time Machine Basics
Time Machine Basics (2)
Clone - Carbon Copy Cloner (Often recommended as it has more features than some others)
Clone – Data Backup
Clone – Deja Vu
Clone - SuperDuper
Clone - Synk
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Commonly Used Backup Methods
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Return to Mavericks from Yosemite

Is there any way to return to mavericks from yosemite? I didn't know aperture 2.1.4 wouldn't be compatible (thanks for making it generally known --AGAIN--Apple). I'd like to go back and retrieve my photos.

Hey Lanny, thanks but I have no clue how to do this. I've always stuck with apple/mac because I didn't have to be a computer geek to make stuff work. I have no idea what it means to erase your internal drive from the Recovery partition and reinstall Mavericks. I don't have a copy of Mavericks; I got it free from Apple. I have no idea what steps I'd need to do all of this and I'm afraid if I did that I'd lose everything and end up with a useless piece of hardware.

Reverted back to Maverick from Yosemite - extremely slow

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