Can I un-install Lion?

Just installed Lion 10.7.5 and now can not access any windows for mac files. This is disastrous, so if there is no way to access these I need to un-install Lion. How do I go about it? I don't think I was warned about this problem.

Appleworks does not run under Lion. If you have Office 2004 it does not run under Lion either. Both of these applications require Rosetta.
Option 1) Reverting to Snow Leopard is not easy but can be done. How hard this will be will be determined by your expertise and backups prior to upgrading.
In additon, you might find that some of your files could no longer be readable like your iPhoto Libraries. If you opened iPhoto and the library was upgraded it can no longer be read with the version of iPhoto that runs in older OS X versions. Same for Apple Mail and some other applications.
You would need to go back in time to before you upgraded to bring back your data. See this guide for help:
How to revert OS X back from Mavericks
Option 2) Create a second partition on your drive and install Snow Leopard along with the applications like Microsoft Office 2004 and Appleworks. You can boot from Snow Leopard when you need to run these apps. If you use them a lot, this would be a real pain.
Option 3) Look for replacements that work under Lion. BEST OPTION
Option 4) You can run Snow Leopard server under Parallels but I suspect upgrading Microsoft Office and finding a substitute for AppleWorks would be a better option. At some point you will have to upgrade to a new OS X. No new computers will run Snow Leopard.
I don't think I was warned about this problem.
It is your responsibility to check requirements before you upgrade. A simple check on the forums would find results showing that Appleworks and Microsoft Office 2004 are no longer supported. Lion was released July 20, 2011.

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Does anyone have any ideas?
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Also, it runs Lion with no problem from an external disk. I'm running an install attempt now from an external drive. I tried upgrading the drive to lion before installing it in the MB Pro, but when I tried to boot from it, it booted to the Apple screen with the progress bar like when you update firmware which froze after awhile. I repartitioned the drive and started over again.
It is is partioned correctly.
I

How can I re-install lion via usb drive on my new mba(mid-2011)?

how can I re-install lion via usb drive on my new mba(mid-2011)?
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in other words, is there a bootable [mac os x lion dmg] for my mba that I can download?

If you are looking for a download link for OS X Lion, I do not know of one. However if you really need the operating system you can buy a USB drive with OS X Lion on it, ready to boot. I think they're $69 at Apple's store. What I would do is contact AppleCare via the Express Lane or just call them and tell them your situation and then they will definantly have an answer for you to point you in the right direction.
Good luck!

Can I re install Lion on my computer since it is running slow

How can I re install Lion since my computer is running slow?

Hardware Information:
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          MacBook Pro - model: MacBookPro7,1
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Can't Re-Install Lion from Recovery HD - Internal Drive Locked and Grayed Out

I can't boot into Lion on my Macbook Pro. I can boot into Bootcamp. When I'm in Bootcamp, using MacDrive, I can access all my files on my main Lion partition. I can also boot into the Recovery HD. From there I can get to Disk Utility which tells me that I need to repair my Lion partition. When I run the repair, it tells me it can't be repaired.
Given that I can still access all my files from Bootcamp, I tried to re-install Lion using that selection from the Recovery HD menu. It verifies my Lion copy over the internet. But when it asks me to designate the drive that I want to re-install Lion on, the drives (Bootcamp, Recovery and Mac) are all grayed out and all say "Disk is Locked". I'd rather not reinstall from my Time Capsule back up because of the time involved, the fact that the backup is a week old and because I dropped the !@#$ external drive with the back up on it yesterday and I don't trust it (it's making weird noises).
I've tried booting up in safe mode and ctrl-sys-r-p but all that happens is hours of watching the wheel spin. I had not set up File Vault so it shouldn't be for want of a File Vault password.
Any idea how I can unlock the drive to at least try to re-install Lion?

Thanks for the idea. I do have another Macbook at home although it's quite a bit older and I've only upgraded it to Snow Leopard, but I'll certainly give it a try. I've already tried what would seem to be about the same thing with, unfortunatley, no luck. I have an old hard drive (running Snow Leopard) that used to be the internal drive in my Macbook Pro. When I pulled it out, I stuck it in an enclosure. When this problem cropped up, I plugged it into the Macbook Pro that's giving me grief (via USB), booted up on the enclosed drive, and ran the disk utility off of that drive against the current internal HD of the Macbook Pro. All I got was the "can't be repaired" message.

Can you still install Lion?

Have a 2007 iMac, running Snow Leopard. Tend to stay a gen behind, so legacy software stays compatible. I know Rosetta has been dropped from OSX 10.7, but don't think it'll be a big problem - just checked w/ Roaring Apps and most of my programs (iLife, Adobe CS 4, etc.) are in the green for Lion (not Mountain Lion). Hoping to get a new computer next year, which will mean going to Mountain Lion anyway. Can I still find/install Lion (10.7)? Will it run on my 5-year old iMac? Or am I just better off waiting until I can update computers, Creative Suite, etc. all at once?

If the system is comaptible, yes.
Call 1-800-MY-APPLE or 1-800-676-2775 to get a code to use in App Store.

Can i clean install Lion into my Macintosh HD drive and leave Bootcamp as it is?

I would like to clean install Lion into my Macintosh HD drive and leave the bootcamp drive without getting affected from it...
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If you have the Lion installer application in your Applications folder, then I suggest you make a copy in your Downloads folder because the installer deletes itself automatically after the installation. By saving it you can make your own USB installer:
Make Your Own Lion Installer
1. After downloading Lion you must first save the Install Mac OS X Lion application. After Lion downloads DO NOT click on the Install button. Go to your Applications folder and make a copy of the Lion installer. Move the copy into your Downloads folder. Now you can click on the Install button. You must do this because the installer deletes itself automatically when it finishes installing Lion.
2. Get a USB flash drive that is at least 8 GBs. Prep this flash drive as follows:
Open Disk Utility in your Utilities folder.
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.
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.
Select the volume you just created (this is the sub-entry under the drive entry) from the left side list. Click on the Erase tab in the DU main window.
Set the format type to Mac OS Extended (Journaled.) Click on the Options button, check the button for Zero Data and click on OK to return to the Erase window.
Click on the Erase button. The format process can take up to several hours depending upon the drive size.
3. Locate the saved Lion installer in your Downloads folder. CTRL- or RIGHT-click on the installer and select Show Package Contents from the contextual menu. Double-click on the Contents folder to open it. Double-click on the SharedSupport folder. In this folder you will see a disc image named InstallESD.dmg.
4. Plug in your freshly prepared USB flash drive. You are going to clone the InstallESD.dmg disc image to the flash drive as follows:
Open Disk Utility.
Select the USB flash drive from the left side list.
Click on the Restore tab in the DU main window.
Check the box labeled Erase destination.
Select the USB flash drive volume from the left side list and drag it to the Destination entry field.
Drag the InstallESD.dmg disc image file into the Source entry field.
Double-check you got it right, then click on the Restore button.
When the clone is completed you have a fully bootable Lion installer that you can use without having to re-download Lion.
However, if you don't do this you can always redownload the installer by using OS X Lion- About Lion Recovery or by reinstalling Snow Leopard 10.6.8.

Why can´t I install Lion on my mcbook air

I can not install OS X Lion on my MacBook Air. It say "You need 3.78 GB of available space to download Mac OS X 10.7. Remove items from your startup disk to increase available space" What to do?

Open a Finder window, select the MBA's hard drive/SSD, and Get Info on the drive (Command-I or from the File menu). Look for the "available" figure. If it's below ca. 5GB, then you need to do exactly what the instructions say; delete enough from your hard drive to get sufficient space.
If you have more than 5GB, particularly signficantly more, post back and we'll go from there.
Regards.

Can't re-install Lion

Hi,
I had some problems with my macbook air 2008 so a apple support guy told me to re-install it.
I made a bootable hard drive and follow the instructions.
I reset my mac and the the Hdd didn't showed up, only the main osx system and the recovery hd.
I enter the recovery and deleted the computer hd, i started the system again but still no hdd only recovery HD.
Don't know what to do right now, i can't re-download it from the app store because when i got the Lion osx was already on it.
I need your help please.
Thanks

Thanks for the idea. I do have another Macbook at home although it's quite a bit older and I've only upgraded it to Snow Leopard, but I'll certainly give it a try. I've already tried what would seem to be about the same thing with, unfortunatley, no luck. I have an old hard drive (running Snow Leopard) that used to be the internal drive in my Macbook Pro. When I pulled it out, I stuck it in an enclosure. When this problem cropped up, I plugged it into the Macbook Pro that's giving me grief (via USB), booted up on the enclosed drive, and ran the disk utility off of that drive against the current internal HD of the Macbook Pro. All I got was the "can't be repaired" message.

HT1349 How can I Un install Lion?

How can uninstall Lion?

Downgrade 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.

Why can't I install lion recovery?

So I had a problem with find my mac and as told to install "Mac OSX Lion Recovery Update v1.0" (see here http://support.apple.com/kb/DL1464)
Anyway when I came to install this on my selected partition (Macintosh HD) I was presented with the following error "Lion recovery update cannot be installed on this disk. An error occurred while evaluating JavaScript for the package"
Does anyone know why this has happened? And also how to fix it?
Thanks in advance.
P.S. I have 3 partitions on my HDD, one is Macintosh HD, another is Bootcamp (which i created using the bootcamp installer) and the last is just a FAT partition.

It sounds as if you don't have a functioning Recovery HD now, probably because of the altered partitioning. Is your Mac capable of Lion Internet Recovery without a Recovery HD? Some recent (2010?) Macs that originally shipped with Snow Leopard were offered an EFI firmware update for this.
If not, and if you don't want to erase and restore your internal HD, the other option in the linked support article was to install and keep a Recovery HD partition on a different volume than your internal HD:
You can also use the OS X Lion installer from the Mac App Store to create an external bootable drive, complete with a Recovery HD partition. See this article for more details. This approach will, at least, create a bootable drive with Recovery HD which you can carry with you in case you need to use Internet Restore or make use of the other utilities Recovery HD provides.
Once you have the Recovery HD as part of a new Lion installation on an external drive, you might be able to transfer just the Recovery HD from there onto a USB flash drive as described here:
OS X Lion: About Lion Recovery Disk Assistant
I don't know if all this is any better than the first option of reinstalling everything on the HD.

Help me, why can't I install Lion??

Really hoping someone can help me.
I currently have Snow Leopard version 10.6.8. I've just tried to buy the new Lion 10.7.2 but every time it tries to install a message flashes up saying i'm not connected to the internet and to check the connection and try again. Well I am clearly connected to the internet (via wi-fi), so i have no idea what I can do to rectify this.
Any ideas? Pleas? As i'm about to cry.

While we all have MacBooks in this forum most of us don’t have Lion. There's a Lion Support Community where everybody has Lion. You should also post this question there. https://discussions.apple.com/community/mac_os/mac_os_x_v10.7_lion

Can I install Lion over Snow Leopard without erasing and restoring hard drive?

Been reading a lot about downloading Lion. Recommended to back up hard drive to ext. drive, erase hard drive, install Lion and then re-install apps and files from ext. drive. Can I just install Lion over Snow Leopard without erasing all apps and files on hard drive?

If you do an upgrade install then be sure to do this first:
1. Repair the Hard Drive and Permissions
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. 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 installer.
If DU reports errors it cannot fix, then you will need Disk Warrior and/or Tech Tool Pro to repair the drive. If you don't have either of them or if neither of them can fix the drive, then you will need to reformat the drive and reinstall OS X.
2. Make a bootable backup just in case. Clone using Restore Option of Disk Utility
Open Disk Utility from the Utilities folder.
Select the destination volume from the left side list.
Click on the Restore tab in the DU main window.
Check the box labeled Erase destination.
Select the destination volume from the left side list and drag it to the Destination entry field.
Select the source volume from the left side list and drag it to the Source entry field.
Double-check you got it right, then click on the Restore button.
Destination means the external backup drive. Source means the internal startup drive.

Is it possible to install Lion on a new MBP (non-retina)?

From what I can conclude, there doesn't seem to be any way to install Lion on a brand new MBP with Mountain Lion pre-installed (purchased today). I have the Lion installer but only for a MacPro, so presumably that won't work. Has anyone found a way to do this?

While it's probably unlikely to work, if you can find someone with the same generation MBP that shipped with Lion you can have them install Lion to an empty external drive and you can try booting from that. You will need the specific version of Lion to these system that cannot be downloaded from the App Store and currently must be installed from an Internet Recovery. If you can boot then you should be able to clone that to your internal drive and be on your merry way.
There is a little crossover where systems that shipped with ML will in fact boot Lion depending on when they were actually manufactured. Hopefully yours is one of them.

Does installing Lion delete all my data?

Hi,
so does installing Lion delete all my private files and stuff?
So do i need to backup first or can i simply install Lion?

Shino.Duo wrote:
so does installing Lion delete all my private files and stuff?
No.
So do i need to backup first or can i simply install Lion?
A full backup is always recommended, in addition to Disk Utility "verify disk" and "repair permissions" operations.

Can I un-install Lion?

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