If I upgrade to Mac OS X Lion, will i lose all my data that i currently have?

I want to download Mac OS X Lion, but i don't know if when I do, I will lose all my data

Only if something goes wrong.
If you have good backups, you should be fine.

Similar Messages

  • If I upgrade to Mac OS X Lion will I lose Applications/Documents/etc.

    I was wondering if I upgrade to Mac OS X Lion tomorrow, will my applications and all the documents that are saved on my computer be there after the upgrade? I do not have money to buy an external hard drive right now to do the back up, so will I be safe without it?

    Hi,
    Look at it this way...
    If you have a Backup and (for whatever reason) Something goes Horrible Wrong.. You have Lost Nothing...
    Without a Backup... You could Lose Everything....
    Not a Nice Thought At All...
    So take all the Advice already Offered and Backup... Backup... Backup...
    And then Upgrade your OS...
    Just my 2 cents worth...
    Cheers,

  • HT4818 hey, I want to install windows on my mac, I have mac osx lion and I'm soon going to get mountain lion. If I use Boot camp to install windows do I need a windows disc, will i lose all my data, etc. If so how to I save them. Can I switch back to osx

    hey, I want to install windows on my mac, I have mac osx lion and I'm soon going to get mountain lion. If I use Boot camp to install windows do I need a windows disc, will i lose all my data, etc. If so how to I save them. Can I switch back to osx after I install windows. ( can I switch between Windows and OS X as many times as I want.) thanks for answering.
    Sebastian

    hey, I want to install windows on my mac, I have mac osx lion and I'm soon going to get mountain lion. If I use Boot camp to install windows do I need a windows disc, will i lose all my data, etc. If so how to I save them. Can I switch back to osx after I install windows. ( can I switch between Windows and OS X as many times as I want.) thanks for answering.
    Sebastian

  • Will i lose all my data if i upgrade to Mountain Lion?

        So all the apple rumor sites are saying Mountain Lion will be released tmrw (wed). I am going to upgrade as soon as i can, but if i upgrade from Lion to Mountain Lion wil i lose all my data? Thanks

    You won't. Back it up anyway.
    (68140)

  • If i uninstall windows 8.1 from my macbook pro, will i lose all the data from mac partition as well?

    if i uninstall windows 8.1 from my macbook pro, will i lose all the data from mac partition as well?

    Depends on how you do it
    If you create a partition with Boot Camp and format that partition correctly
    Then install Windows your data should not be touched
    If you do anything wrong or there is any mishap during the whole procedure you could lose everything
    Hence the reason I suggest that you backup first
    Allan

  • When I update my mac, will it upgrade my mac to Mountain Lion, will it update my apps too?

    I would like to know if when I upgrade my mac, will it update my apps. For example will it update my mail app. I want to update from snow leopord to mountain lion.

    It will update all the apps that come with the Operating System. And yes, that includes Mail.

  • If i upgrade to mountain lion, will I lose all my aftermarket software?

    I just got an iPad 2 & now I need to upgrade my macbook pro to mountain lion so I can activate iCloud & share media between the two. I'm worried that if I do, I will lose all my aftermarket software on my macbook, most importantly 'office for mac' as I don't have it on disc and need it.
    I was going to upgrade via the app store - can I do that without it affecting my other software?

    Welcome to the Apple Support Communities
    You won't lose anything upgrading Mac OS X. Note that Office 2004 isn't compatible with OS X Mountain Lion because it's a PowerPC application, so if you are using it, you have to upgrade to Office 2008 or 2011 first. Remember to make a Time Machine backup and/or a clone with Carbon Copy Cloner before upgrading

  • Upgrading to Mac OS X Lion will affect my windows partition..??

    Hi everyone,
    I bought my Macbook pro last week. I used boot camp to install Windows 7 pro.
    I hesitate to update mac for fear that the Windows partition will be erased..Is it the case..??
    Thank your for your help

    No just leave it. It's unaffected by the lion update. if you edited your Bootcamp partition afterwards look at http://support.apple.com/kb/HT4649
    Do make sure that your Mac disk is error free (run disk utility) and that you have > 15gb free.

  • If I download Mavericks, will I lose all my data on my mac currently?

    Like files, apps I've downloaded like Chrome, bookmarks in safari and chrome, other apps I've downloaded from the app store, etc. Do i need to backup things? If so, how do I back them up?

    The installer is meant to just overwrite the previous OS and leave your files be. However, nothing is perfect and having a backup of your system before upgrading is a necessity. Use Time Machine before upgrading your system.

  • If I restore my Mac with Time Machine, will I lose any new data?

    About a month ago I had my computer sent in to get some work done on it. They fixed the problem, but I didn't notice until later that it had lost my Apple ID.
    It was still the same computer all of my files were on it, but I had to resign in on everything with my Apple ID.
    Is there a way to use Time Machine to restore my computer back? My only problem with using the system restore is I think that will cause me to lose all of my new data like, songs, docs, photos, etc...
    Is that the case? or is there a way to restore without losing that information?

    Try something stronger, such as DiskWarrior or TechTool Pro.
    iMac refurb (27-inch Mid 2011), OS X Mavericks (10.9.4), SL & ML, G4 450 MP w/Leopard, 9.2.2

  • I just upgraded my OS X 10.6.4 to Mavericks and now my iPhoto '09 needs an upgrade.  Will I lose all my photos if I do the upgrade?

    I upgraded my two Macbook Pro's yesterday to Mavericks, from OS X 10.6.4.  I can't seem to open iPhoto on ONE of them.   I believe it's the same on both computers, iPhoto '09.  So I went in the App store and clicked upgrade my iPhoto. Now it says the library needs to be upgraded to work with this newer version of iPhoto.  Help!  Am I going to lose all my photos?

    I believe it's the same on both computers, iPhoto '09.
    Check the iPhoto versions. The version number should be shown below in the "General" section of the Info panel, when you select iPhoto in the Finder and use "File > Get Info".  With Mavericks you should be using iPhoto 9.5.1.  You can buy the upgrade from the App Store.
    Will I lose all my photos if I do the upgrade?
    No, but never do an upgrade without making a backup of your computer, just in case something is wrong.
    Your photos are in your iPhoto library. After installing the upgraded version,  the iPhoto Library will be upgraded to a new format, when you open it the first time in iPhoto.
    If you want to use your iPhoto Library on both your computers, the iPhoto version should be the same.

  • Problems Problems after upgrading to Mac OS X Lion

    I upgraded my mac os to Lion last week on my Mac air.  After loading, my norton could not work probably. Then last night, files in my start up disk doubled and hence error appeared - that my disk is full while I only used 50% of the storage capacity.
    This morning my iphone 4 also appeared to be have the SMS messages and photos and every files also appeared to duplicate itself.
    Can anyone assist ?

    After loading, my norton could not work probably.
    Does Norton ever work properly? 
    Norton is a known troublemaker, and most likely the version you have is incompatible with Lion.  You could try updating Norton, but personally, that's one I'd remove immediately and never come near again.  If you feel you need AV software on your Mac, the only thing I would recommend wholeheartedly is ClamXav.  Sophos' free home AV software would be my second choice, though with some reservations, as I've heard of people having problems with it.
    As to the doubling files problem...  can you describe more precisely what you're seeing?  I've never heard of such a problem before.

  • My Safari browser won't open. I had upgraded to Mac OS X Lion. What do I  do?

    My iMac is 2008 built. In March 2012, I upgraded to Mac OS X Lion. Since then I had problems after problems. Since the computer was getting slower and slower, I thought the Prosoft Drive Genious 3 would be useful. When I installed it on iMac, it caused more problems. I removed the Prosoft Drive Genius 3 from the internal iMac hard drive and tried to install it on an external drive.
    Now I can't access Safari. It doesn't open. I had to download Mozilla Firefox browser. I don't see any links on Apple site for the latest Safari browser for Mac. What do I do to download Safari.

    August 10, 2012 1:00 PM
    Thank you very much for your email and the post. I copied the segments of the crash report  from the Console and pasted and edited in the TextEdit. I don't know what shutdownStall etc is.
    Confused_one
    2012_08_10_Safari_crsh
    Process:         Safari [294]
    Path:            /Applications/Safari.app/Contents/MacOS/Safari
    Identifier:      com.apple.Safari
    Version:         5.1.6 (7534.56.5)
    Build Info:      WebBrowser-7534056005000000~6
    Code Type:       X86-64 (Native)
    Parent Process:  launchd [150]
    Date/Time:       2012-08-10 12:29:07.910 -0400
    OS Version:      Mac OS X 10.7.4 (11E53)
    Report Version:  9
    Interval Since Last Report:          37473 sec
    Crashes Since Last Report:           11
    Per-App Interval Since Last Report:  17 sec
    Per-App Crashes Since Last Report:   11
    Anonymous UUID:                   
    Crashed Thread:  0  Dispatch queue: com.apple.main-thread
    Exception Type:  EXC_CRASH (SIGABRT)
    Exception Codes: 0x0000000000000000, 0x0000000000000000
    Application Specific Information:
    objc[294]: garbage collection is OFF
    *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Invalid parameter not satisfying: (index >= 0) && (index < [_itemArray count])'
    *** First throw call stack:
              0   CoreFoundation                      0x00007fff87634f56 __exceptionPreprocess + 198
              1   libobjc.A.dylib                     0x00007fff8f7a7d5e objc_exception_throw + 43
              2   CoreFoundation                      0x00007fff87634d8a +[NSException raise:format:arguments:] + 106
              3   Foundation                          0x00007fff89b1f71f -[NSAssertionHandler handleFailureInMethod:object:file:lineNumber:description:] + 169
              4   AppKit                              0x00007fff8cb55cdf -[NSMenu itemAtIndex:] + 165
              5   AppKit                              0x00007fff8cb55e38 -[NSMenu removeItemAtIndex:] + 63
              6   Safari                              0x000000010f170c2e -[AppController awakeFromNib] + 387
              7   CoreFoundation                      0x00007fff8762bfb1 -[NSObject performSelector:] + 49
              8   CoreFoundation                      0x00007fff8762bf32 -[NSSet makeObjectsPerformSelector:] + 274
              9   AppKit                              0x00007fff8cb3d9ff -[NSIBObjectData nibInstantiateWithOwner:topLevelObjects:] + 1245
              10  AppKit                              0x00007fff8cb33f73 loadNib + 322
              11  AppKit                              0x00007fff8cb33470 +[NSBundle(NSNibLoading) _loadNibFile:nameTable:withZone:ownerBundle:] + 217
              12  AppKit                              0x00007fff8cb3338b +[NSBundle(NSNibLoading) loadNibFile:externalNameTable:withZone:] + 141
              13  AppKit                              0x00007fff8cb332ce +[NSBundle(NSNibLoading) loadNibNamed:owner:] + 364
              14  AppKit                              0x00007fff8cda406f NSApplicationMain + 398
              15  Safari                              0x000000010f373806 SafariMain + 166
              16  Safari                              0x000000010f15ef24 Safari + 3876
    terminate called throwing an exception
    abort() called

  • I just upgraded my mac to Mountain Lion and turned on iCloud. Now all of the music stored on my mac shows up on my iphone. My question is, if I listen to this music on my iphone am I using up my data plan?

    I just upgraded my mac with Mountain Lion and turned on iCloud. Now all of the music stored on my mac shows up on my iphone. My question is, if I listen to this music on my iphone am I using up my data plan?

    No, if you are using the Music app you are playing them on your iPhone.

  • I can't get the mac app store. There's no software update availiable and it seems i can't upgrade to Mac OS X Lion without that.

    There's no mac app store availiable to download for me.
    I want to upgrade to Mac OS X Lion, but without that mac app store it seems to be impossible.
    I did all software updates but never got that mac app store. So what can I do now?

    THis is because you have two OS X upgrade steps. First, you need to upgrade to Snow Leopard ($29 us, disk only, no download).
    Once you've upgraded to Snow Leopard, and run Software Update to get to 10.6.8 then you'll have the Mac App Store and can take the second OS X upgrade step to Lion 10.7.2.

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