Remove lion

made my macpro very slow
how do i remove and return to old operating system

made my macpro very slow
That is not normal. You should consider doing some troubleshooting first. Take a look at the Mac OS X Speed FAQ for some ideas.
One possibility is that Lion is more demanding of RAM... take a look at the System Memory tab in Activity Monitor. Compare page ins and page outs. If the page outs value is more than 10% of the page ins, you need more RAM and are probably seeing some memory-related speed problems.

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How do I remove Lion and go back to Snow Leopard OS?

How do I remove Lion and go back to Snow Leopard?

If you have the white upgrade disk (originally, you had Leopard and bought SL later), easy. I'm not sure if you have the grey disks (you bought the machine with SL).
If you have the white disk, the first thing you do is get a USB external HD. Format it to GUID with disk utility.
Insert the white SL disk and restart. Follow the instructions to install SL on the external disk.
Have a look here for a step by step tutorial for setting up the external HD: http://www.maciverse.com/installing-snow-leopard-onto-an-external-hard-drive.htm l
From here on in you have two choices:
1. You can run SL off the external disk and keep Lion and all your files/data on the internal disk.
This is the easiset thing to do. You can open files from your Internal Lion disk by navigating through to it in Finder when you're booted in to SL on your external disk. Practical if you have a desktop machine, maybe not if you have a laptop that you need to carry everywhere (you'd have carry the external HD with you all the time).
Any non-Lion only (i.e., not Safari, Preview, Terminal and Mail Lion upgrades) apps should also run off your Lion disk when you're booted into SL, but if you have any problems, just drag them from the Lion Apps folder to the SL apps folder.
2. Move everything over to the external disk if you plan to install SL back to your internal disk.
Start copying over all your apps and files manually by dragging them from the internal disk Apps and Folders to the external disk Apps and Folders. If you have Time Machine, you can also copy your files by navigating to Time Machine through the Finder rather than trying to use the Time machine interface.
You might spend some days doing this, but it's worth doing it manually. When you're done and sure you have everything, google 'Carbon Copy Cloner'. Download it (its free), and clone your external HD to your internal HD. SL restored!

I down loaded new OS X (Lion)operating system and discovered my CAD programs no longer run. Is it possible to reload the original OS X and remove Lion?

I down loaded new OS X (Lion)operating system and discovered my CAD programs no longer run. Is it possible to reload the original OS X and remove Lion?

If you backed up before the upgrade, restore the backup.
If not you are going to have to erease the disk and install the older OS.
You should back up any data you want before so that it can be restored afterwards.
Is there a version of you CAD program that is Lion compatable? That would be an easier solution.
Allan

Imac 10.6.8 won't recognize usb printer but laptop same OS does. Perhaps because i removed lion??

imac 10.6.8 won't recognize usb printer but laptop same OS does. Perhaps because i removed lion?? all latest drivers installed tried two different usb cords system profiler doesn't see printer under usb. Can you help?

Repair permissions and restart your computer. Also, check System Preferences/Printe & Fax. Make sure your printer is listed.

CAN I REMOVE LION AND GO BACK TO SNOW LEOPARD

can i remove lion and return to snow leopard

I see the help offered. I have just posted the same question and now see others with the same problem. Lion may be fine, but for me It's giving me a headache. A couple years ago I switched from a long time PC user to Mac largely because I was tired of the constant "upgrade" "patch and fix" merry-go-round we get with "those other guys". My Macbook Pro worked well with Snow Leopard but was eventually talked into the Lion upgrade. 24 hours later, I'm sorry I did. Some of my software that worked for me is not supported by Lion and neither is my Linkstation (where I have my files and backups). I tried installing the disk that came with the system to revert or return to factory condition but it too returned an error message "...software not supported...". I tried both pressing "C" during startup and when that failed, tried installing from the disk after Lion loaded, same result.
I see that suggested as a solution so I'll try again, just in case I missed something, but if there are other thoughts or suggestions, they are appreciated. I've tried to go into disk utility to partician, nope not allowed, can should I "erase" the current partician or ????
I don't know... thanks for any suggestions to clean this up.
Thanks.

HELP! How do I remove Lion and reinstall Snow Leopard and my files

HELP! How do I remove Lion and reinstall Snow Leopard & my files BUT I just discovered my Apple Time Capsule which was using Time Machine DIED
I had to go to MacMall and have the Time Capsule data transfered to a new BAK drive($300+$300)
(The Apple Store sent me there as they said they do not do data transfer)
Now what do I do?
? ? One Senior advisor said that I will have to drag and drop the data file or files? from the Time Capsule BAK drive back to my iMAC but will that include all the Snow Leopard operating system ?
? ? Another senior advisor said I will have to wipe my hard drive then install Snow Leopard then "drag and drop", ? ??
All my business leases, database, spreadsheets. letters, mail merge files, and so on are not available with Lion -
I AM VERY ANGRY AS I NEVER SAW THAT WRITTEN ANYWHERE !!!
I am seriously confused and I AM SCARED TO MAKE A MISTAKE-HELP !!
WHAT DO I DO ? AND IN WHAT ORDER? PLEASE HELP!

Your post is confusing to read too.
It sounds like you still have your files on your Mac. Why do you want to back track to Snow Leopard on your Mac? Why can't you read your files from your Mac? If your files are on your Mac, why are you taking them off your broken Time Capsule? You don't have to install Snow Leopard to transfer your files back to your Mac. Maybe step back a bit and explain your situation a little better with details. For instance, what's a BAK drive? Suggest you explain what you are trying to do?
Before you do anything, create a backup of your Mac to another disk drive.. suggest you use Carbon Copy Cloner to make another copy of your Mac.

How do I remove Lion / MBA too slow booting with Lion

I am very disappointed with Lion, since installing no matter what i do my MBA is slow slow to boot.
How do I remove Lion ?
Thank you

Follow Kappy's post:
https://discussions.apple.com/message/15764708#15764708

Is it possible to reinstall Snow Leopard, removing Lion, without reformatting the hard drive or losing data?

Since I've installed Lion on my early 2009 model iMac, it runs really slow and sometimes is unresponsive. I'm thinking of reinstalling Snow Leopard, removing Lion, but want to know if anyone has done this and experienced any problems or data loss.

samberl wrote:
Reinstalling your OSX is a very simple exercise. I just would not do it from a TM backup.
He already has Time Machine backups.
Reformat, reinstall OSX Snow Leopard and then restore your applications, settings and user directories
You can do most of that, but "complex" 3rd-party applications (typically, ones that came with their own installers) must be reinstalled from the original discs. See Transferring Applications for details.
And don't restore the default Apple apps -- most (or all) of the Lion versions won't work on Snow Leopard.
Other apps (iLife, iWork, 3rd-party) that were updated or purchased after the Lion installation also may not work on Snow Leoaprd.
In addition, there will be problems with some Snow Leopard apps that won't work with the different file/folder structure used on Lion. Mail is one, for sure.
Much faster than TM machine,
Should take about the same time as from a clone.
you should be up and running in an hour or two.
Depending on how much there is, and especially how many complex apps, that may be rather optimistic.
Save yourself a bundle by not buying a new iMac.
Absolutely (although that didn't seem serious).

Removing Lion for Leopard

Got a new macbook pro to replace my old one with 10.4. Most of my equipment (scanners, printers, etc.) now don't work. Can I remove Lion and replace it with Leopard?

Can you remove Lion 10.7 and replace it with Leopard 10.5...no, not possible. read this: http://support.apple.com/kb/HT2186

How do I remove Lion and go back to snow leapard

Lion does not work well with several of my applications the most important of which is my client data file and billing program which keeps crashing with Lion. I want to remove it and go back to SL but don't want to lose any data that I have put in my files. Using time machine backups I am afraid will lose much of what I have done since I "upgraded" (I should say downgraded my system) with Lion. I don't like the changes in ical (it ***** big time) and address book is just as bad, not even functioning right. Then there is no manual for figuring things out. I know Steve Jobs has been sick but that is a lousy excuse for a lousy upgrade that really had more problems then additional helpful features.

This is what we did in our office, from Kappy:
To switch from Lion to Snow Leopard:
1. Boot from your Snow Leopard Installer Disc. After the installer loads select your language and click on the Continue button. When the menu bar appears select Disk Utility from the Utilities menu.
2. After DU loads select your hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. Note the SMART status of the drive in DU's status area. If it does not say "Verified" then the drive is failing or has failed and will need replacing. SMART info will not be reported on external drives. Otherwise, click on the Partition tab in the DU main window.
3. Under the Volume Scheme heading set the number of partitions from the drop down menu to one. Set the format type to Mac OS Extended (Journaled.) Click on the Options button, set the partition scheme to GUID then click on the OK button. Click on the Partition button and wait until the process has completed.
4. Quit DU and return to the installer. Install Snow Leopard.
This will erase the whole drive so be sure to backup your files if you don't have a backup already. If you have performed a TM backup using Lion be aware that you cannot restore from that backup in Snow Leopard (see below.) I suggest you make a separate backup using Carbon Copy Cloner 3.4.1.
If you have Snow Leopard Time Machine backups, do a full system restore per #14 in Time Machine - Frequently Asked Questions. If you have subsequent backups from Lion, you can restore newer items selectively, via the "Star Wars" display, per #15 there, but be careful; some Snow Leopard apps may not work with the Lion files.

How do I remove Lion and go back to Snow Leopard?

I spent half a day downloading and installing Lion today.
All my Microsoft Office applications are now unusable. This is unacceptable!!! It is more important to be functional with my apps than to have a fancy new OS that doesn't allow me to work!!!
So, please, how do I uninstall/remove and go back to Snow Leopard?

MacIntouch Lion comments:
The Office for Mac team recently posted a blog post concerning Lion compatibility. You can find that blog post by following the link below:
http://blog.officeformac.com/office-for-mac-2011-and-mac-os-x-10-7-lion/
You can find more information concerning Lion (10.7) compatibility on the following KB article:
http://support.microsoft.com/kb/2586538
http://www.macintouch.com/readerreports/lion/index.html#d23jul2011

Lion/snow leopard dual boot remove lion

Hi there guys,
I have recently (december 2011) purchased an early 2011 macbook pro (Inte Dual Core I5 2.3Ghz, 8Gb Ram, 500Gb hard disk, Graphics Intel Hd Graphics 3000 512Mb memory)
The system came initially with Snow Leopard installed which I substituted with Lion doing a fresh install (deleted hard disk) several times as I was not at all pleased with the installation as it seemed to slow the whole booting process considerably and caused several strange graphic issue such as strange lines when switching from one mission control window to another plus mail giving me a spinning ball for approx 30 seconds before actually starting properly and sometimes crashing, not being able to work with the desktop after booting for at least another 30/40 seconds.
I therefore decided to partition the internal hard drive creating an 80 gb partition in which i installed in a a dual boot manner Snow Leopard.
Now I am very pleased with the fresh Snow leopard install and its performance and i would like to get rid of the primary partition with lion installed.
Can I just delete the partition via the disk utility without incurring into any problems or.....
Any advice would be very much appreciated.
Happy winter to all...
Mirco

First, BACKUP!
Remove by:
Open Disk Utility.
Erase the Lion partition to MS-DOS (FAT).
Remove the extra partition by opening Boot Camp Assistant, then restore your drive to a single volume.

Removed Lion Recovery Partition!

I have removed the Lion Recovery partition and shat should I do now to get that back again?

Download Carbon Copy Cloner and WinClone 3
Get two blank external drives, make sure they are formatted GUID and OS X extended journaled in Disk Utility (actually check Winclone for their external drive format requirments for Windows)
Use CCC to clone the OS X partition to one external drive.
Use Winclone to clone the Windows Boot Camp partition to the other external drive.
Disconnect all drives.
Now the problem is how to get Recovery HD back onto the machine.
If you upgraded 10.6 to 10.7/10.8, then hold option/alt and boot off the 10.6 disk, use it to erase the entire internal drive of everything, then install 10.6, upgrade to 10.6.8 and reinstall 10.7/10.8 from AppSore by option click on Purchases or whatever it uses, that will put the Recovery HD back on the machine.
If your machine came with 10.7 or 10.8, then hold the command option and r keys down and boot the machine on a fast Internet connection (Ethernet the router preferred) and this will load Internet Recovery from Apple's servers. Use Disk Utility there to erase the entire drive of everything and quit, then reinstall OS X from Apple's servers, it will recreate the Recovery HD partition that way, as it's assuming it's a new drive it's installing on.
When you have your machine in order, go to BootCamp and set up your partition again, then quit.
Hold the option/alt key down and boot off the OS X "CCC" clone you made, now use CCC to reverse clone OS X back onto the internal drive.
Connect the Winclone drive, run Winclone and clone that back onto your BootCamp partition.
When done, reboot and disconnect all drives, head to System Preferences > Startup Disk and set it to either OS X or BootCamp as the default boot. As you know if you change your mind to hold option key at boot to go to the other instead.

If I buy a Mac Mini Server, can I remove Lion Server and just keep OS X Lion?

This is because it has much better specs than the regular ones.

Here was my solution to removing the 'server' software and running with standard Lion.
https://discussions.apple.com/thread/3108472?start=0&tstart=0
I had issue running certain software on the server version and now my machine just runs regular Lion as opposed to Snow Leopard server the issues are gone.
If you have multiple Macs you also only pay for OS X Lion once and not have to spend the extra on the server version.

HT3986 I accidentally removed lion on boot camp how can I recover

I accidentally removed my Mac operating system when installing windows 7 on boot camp how can I recover

Welcome to Apple Support Communities
If you have a Mid 2010 MacBook, you can use Internet Recovery to reinstall OS X > http://support.apple.com/kb/HT4718
Start your MacBook holding Command, Option (Alt) and R keys. Then, open Disk Utility, choose your hard drive at the top of the sidebar, go to Erase tab and erase the disk. Then, close Disk Utility and reinstall OS X.
You will have to install Windows again after installing Mac OS X Lion. Follow these steps to reinstall Windows > http://manuals.info.apple.com/en_US/boot_camp_install-setup_10.7.pdf
If you have an old MacBook, use the Snow Leopard DVD to reinstall Mac OS X. Start your computer holding the C key while your computer is starting. Select the language, go to Utilities menu > Disk Utility, and follow the steps I have given you

Remove lion

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