Once you install mac os x lion does it delete everything

can someone tell me my answer thank you

No, but you should always backup your important data before upgrading from one Mac OS X to another. 

Similar Messages

  • How can you install Mac OS X Lion on a new, empty hard drive?

    If the only way to install Mac OS X Lion is by downloading it via the Mac App Store, it's going to be very difficult to put it on a brand-new hard drive unless Apple provides us with workarounds,So what should we do when want to install Mac OSX Lion on new HD?
    ThanQ

    What you get from the Mac App Store will be an Installer Application. You will be able to transfer that Installer from Mac to Mac. I have not seen it yet, but we may also be able to burn an installer disk, we shall have to see just how things work.
    Apple has always been known as an innovative company. And when they announce something new folks always go nuts with reasons that this cannot work. When Apple stopped making Macs with floppy drives and iMacs only had optical drives, people went crazy. Today no one makes computers with floppy drives.

  • If i restore my mac with my already downloaded Mac OS x Lion, Does it delete my current files?

    I recently purchased a MacBook Pro 13", i7, 2.7gHz
    A few days ago i restarted my macbook, All that came up was a Blank white screen.
    When i go into recovery, the recover option are to use the installation cd, which i do not have(they set it up in the shop), To re-install mac OS x Lion or to back up my files with time travel.
    I am wondering if i choose to re-install OS x Lion will it delete all my files and reset it to factory setting?
    Need a reply
    Thanks!

    Reinstalling does not touch your files unless you first erase the hard drive.
    Reinstalling Lion Without the Installer
    Boot to the Recovery HD: Restart the computer and after the chime press and hold down the COMMAND and R keys until the menu screen appears. Alterhatively, 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.
    Repair the Hard Drive and Permissions: Upon startup select Disk Utility from the main 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.
    Reinstall Lion: Select Reinstall Lion and click on the Continue button.
    Note: You can also re-download the Lion installer by opening the App Store application. Hold down the OPTION key and click on the Purchases icon in the toolbar. You should now see an active Install button to the right of your Lion purchase entry. There are situations in which this will not work. For example, if you are already booted into the Lion you originally purchased with your Apple ID or if an instance of the Lion installer is located anywhere on your computer.

  • How do you install Mac OS X lion drivers into Windows 8 via bootcamp 4?

    Is it possible to get the drivers for my Macbook pro onto the new Windows 8 dev beta via bootcamp, or at all in this case?

    Have a look at the solution in this thread https://discussions.apple.com/thread/3325709?tstart=0
    Stefan

  • I just downloaded Mountain lion and its deleted EVERYTHING! How can i get it back??

    I just downloaded Mountain lion for my mac book pro, and now it has deleted everything on here. Its my school laptop and i will be killed if i can't fix it!!! Can anyone help me get all my memory back??

    Restore the system from your Time Machine Backup.
    Just downloading and Installing OS X Mountain Lion does not Delete anythng. That is a User choice and not really even a choice during the normal install of Mt Lion.
    So it was Not Mt Lion that Deleted everything, that was you that made that choice during the install.
    Maybe you shouldn't of made those choices with a computer you needed to use for school.

  • When I try to install Lion it tell's me "You can't use this version of the application install mac os x Lion with this version of Mac os x" even though I have the latest update 10.5.8 of Mac os X?

    When I try to install Lion it tell's me "You can't use this version of the application install mac os x Lion with this version of Mac os X" even though I have the latest update 10.5.8 of Mac os X?
    The install icon has this sign on it 

    moose0422 wrote:
    You can't install Lion over Leopard. To install Lion, a requirement is Snow Leopard. So you can either upgrade to Snow Leopard first or you can make a bootable Lion install disc and use that to wipe your hard drive and install a fresh copy of Lion.
    So to make a disk would require you to purchase Snow Leopard and upgrade to 10.6.8 so you can use the App Store, unless you have access to another computer to download it from with your Apple ID. Remember it is about a 3.4GB download.
    Good Luck

  • Install Mac OS X Lion.app

    I just installed Lion on my Daughters new MBP 15" (Purchased June23/11). So this was a free upgrade, my question is why can't I find the "Install Mac OS X Lion.app" in Applications, or anywhere else on the harddrive. ?

    Hi Gnarly:
    Unfortunately, you won't.  Once Lion is installed it deletes the installer app.
    The solution is to make a copy of the "install Mac OS X Lion", first BEFORE you run it, and save it some where safe, I recommend burning a copy to DVD.
    You may be able to re-download it for free.
    -Robert

  • System prefrences won't respond after installing Mac os X lion

    I installed MAC OS X LION yesterday and i went to my sysem prefrences and I tried changing my wallpaper but the system prefrences frooze and just keept on loading, I have forced quit several times yet it still does the same thing all the time. HELP!

    Restart in Safe Mode and then re try. If you are not familiar with a Safe Mode restart, Apple explains how in:
    http://support.apple.com/kb/HT1455

  • I have Mac OS X Snow Leopard 10.6.8; I am trying to install Mac OS X Lion

    I have Mac OS X Snow Leopard professional 10.6.8 update
    I am trying to install Mac OS X Lion.
    I get an error message: other users are logged on.
    I have three accounts: William G Cullen; Guest; williamgcullen.
    I have tried to delete williamgcullen, but it asks for a password; I have tried every password I know and can't open it. I also did not set up this account.
    how do I solve this problem?
    [email protected]

    Go to System Preferences > Users & Groups. If the lower left, there is a lock icon. Click on it and type in your password to make changes.
    Then, select the account you want to remove and press the - symbol.

  • Is it possible to install mac os x lion with parallels 5 allready install ?

    Is it possible to install mac os x lion with parallels 5 allready install ?

    Parallels 5 will not work in Lion. You must upgrade to Parallels 6.
    Regards.

  • Where is the "Install Mac OS X Lion.app" file?

    I recently downloaded and installed Lion on an iMac that was running Snow Leonard. Everything went well with the exception that the file "Install Mac OS X Lion.app" that's supposed to be in the Applications folder, isn't there. Where is is and how do I get it?

    keg55 wrote:
    Go back into the App Store, login with your Apple ID then press/hold the Options/Alt key and click on the Purchases tab at the top. You should see Lion available to install. Click INSTALL and Lion will redownload. Just remember NOT to continue with the installation after it downloads.
    Very strange! This is what I get when I follow your instructions:

  • Can I install Mac OS X Lion on an external FireWire800 drive?

    Can I install Mac OS X Lion on an external FireWire drive? I have bought a Lion Thumb Drive. I'd like to install Lion on the FW drive and then boot from there. The FW drive is a brand-new LaCie D2 Quadra 2 TB drive that has FW 800, 400, USB, and esATA connectivity.  Can't find any manual describing how to do this. Any help appreciated. The more detail, the better. Thanks.

    Yes, you can. When you run the installer you will get to a screen where you will see the default target drive, usually "Macintosh HD." Under the icon you will see a link to display other drives. Click on that so you will see the external drive you have connected. Select that then continue the installation.
    For simplicity connect the drive using FW800.

  • I need to re-install mac os x lion

    Hello,
    I installed windows 7 on my imac but when I made it, I remove all other parts including mac os x boot section. I can not find all drivers for windows 7, because of that I want to re-install mac os x lion but I don't have any installation DVD, also I don't have any installation file on my HDD. How can I install mac os x lion again?
    Thank you.

    I'm hoping you didn't totally wipe your system, try booting and when you hear the Startup Tone hold down the Option key and choose the Recovery Partition and then install Lion. If you totally erased the drive and the only thing left you will have to try using Lion Recovery & Lion Recovery, OS X Lion: About. If those don't work then your next stop is an Apple Store or AASP for service.

  • Will ILife 2011 be there when I clean install Mac os x Lion?

    Before I clean install Mac os X lion. Will ilife be there when I'm finshed installing? and with all the intel graphic drivers, do i have to install the driver updates?

    No. To do a clean install you have to wipe the HD or bootable volume. BTW, before installing Lion, you should make a bootable backup/clone of your current SL installation so you can go back if the installationi doesn't turn out. IMO, there's no need to do the so-called clean install.

  • Can i install MAC OS X LION without an apple id?

    Hi guys. Pls. help me. I recently bought a secondhand macbook and i decided to reset it. But it does not allow me to install mac os x lion without an apple id. What should i do?

    Install the original version of OS X (the one that it came with)
    How old is it?

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