Mac os x disappeared

hi all,
im new to this forum and ive been searching for answer but couldnt find it.
anyway, i was doing work on my windows and after i finished, i switched back to mac. i opened  my google chrome n couldnt connect to the internet. ive check everything and it seems fine. so i restarted the computer and on the apple logo, i saw a progress bar like it was doing something (installing or uninstalling). when it finished, my mac os is gone and can only open windows. ive looked at the mac hard drive from windows and it seems like it has been reformatted and everything inside it is gone.
what can i do to get my mac os back and my data?
thanks
ps: sorry for my bad english

Hi fergalob!
Scary huh? Don't panic! I'll attempt to help.
First thing to do is Repair Disk,
THESE ARE THE STEPS FOR USING DISK UTILITY TO REPAIR YOUR HD
1.Insert the System Install disk, Mac OS X CD-ROM disk, or Restore DVD disk, then restart the computer while holding the C key. Use the System disk, of the OS, that is currently installed.
2.Once started up from CD or DVD, choose Disk Utility from the Installer contextual menu, on the Menubar at the top of the screen.
Important: Do not click Continue in the first screen of the Installer. If you do, you must restart from disc to access Disk Utility.
3.Click the First Aid tab.
4.Click the disclosure triangle to the left of the hard drive icon to display the names of your hard disk volumes and partitions.
5.Select your Mac OS X volume, if necessary.
6.Click Repair. If DU reports errors it has fixed, then re-run Repair Disk until no errors are reported.
7.When finished, select Quit Disk Utility from the Installer menu.
8.Select Quit Installer from the Installer menu.
9.In the resulting pop-up window, choose restart.
10.After the computer has restarted, you can eject the CD.
If that is successful, restart the Mac while holding down the X key, to try to startup in OS X.
If that is not successful, try restarting while holding down the Option key, as explained here Using the Startup Manager, then select OS X.
If you get booted into OS X, run Repair Permissions.
TO REPAIR PERMISSIONS ON THE STARTUP DISK
1.Open Disk Utility, located in Applications/Utilities, and select the startup disk in the left column.
2.Click First Aid.
3.Click Verify Disk Permissions to test permissions or Repair Disk Permissions to test and repair permissions. (I never "Verify". Just run "Repair".)
Rerun RP until the only messages reported are listed here Spurious Permissions Errors Using: 10.3.x, authored by Michael Conniff.
When "Repair Permissions" is complete. Quit "Disk Utility".
Good Luck! And post your results, for additional assistance.
ali b

Similar Messages

  • I created an album on the iPhone but when sync'ed to the mac, the album disappears.  Is there a way to share albums created in iphoto on the iphone with the iphoto on the mac?

    I created an album on the iPhone but when sync'ed to the mac, the album disappears.  Is there a way to share albums created in iphoto on the iphone with the iphoto on the mac?

    Is there a way to share albums created in iphoto on the iphone with the iphoto on the mac?
    No, there is not yet a way to do that. Albums created on the iPhone cannot be synced back to the mac.
    You might try other ways to send photos back to the mac in a structured way, depending on your IOS version:
    You could use Journals instead of albums. If you share a Journal, you can see it on your Mac.  http://support.apple.com/kb/PH3152
    Or create shared photo streams.  iCloud: Using and troubleshooting Shared Photo Streams
    Regards
    Léonie

  • The "On My Mac" Mailbox has disappeared. How do I get On My Mac back?

    The "On My Mac" Mailbox has disappeared but all the folders and contents underneath are still there. How do I get On My Mac back?

    Look in your user library/Mail to see if it is there. If not, if your have a backup, try restoring that folder.

  • Once again, my .mac aliases have disappeared from Mail.... Arghhh! help?

    Once again, with no warning, all my .mac aliases have disappeared from the dropdowns in my Mail app (OS 10.4.11). They still exist in .mac/mobile me webmail, and in Mail i'm still receiving emails addressed to them. But I can't reply to these emails with the alias, nor create new emails with aliases.
    I have tried Sync-ing with the site- i recollect that has worked in the past, but now no change. i have tried adding the aliases in with commas after the primary address in Preferences (as is suggested in KB below), but it does not work- and the next time Prefs is open, they are gone. In Mail preferences, the account is listed as ".mac", which is listed in the KB as one of the correct types (the other being imap).
    I use my .mac aliases a lot, and have for years. i do NOT like or want to go to .mac/me Webmail to be able to use them. i do NOT want to change them to .me addresses/aliases. I can't stand how they just randomly come and go as far as being available as dropdowns in Mail... what the heck is up with Apple? i'm paying $100 for these kinds of services (excuse me, $99) and they can't keep a few aliases available to their own app (Mail)? If they weren't so deeply embedded in my business uses, i'd ditch the whole thing.
    Anyway, enuf ranting; does anyone know the solution or work-around? Nothing in the below KB worked for me, even tho it is supposed to.
    the non-helpful KB: http://support.apple.com/kb/HT2296

    If your aliases are disappearing after you enter them, that would indicate that your Mail preferences file has become corrupted. The only solution for that is to delete the com.apple.mail.plist file in Home/Library/Preferences, then restart Mail and setup your account(s) again.
    However, before you do that, you must remove all your mail account folders that being with "IMAP-"; otherwise you'll create more problems for yourself. Those are located in Home/Library/Mail.

  • TS4002 My Mac mail has disappeared from my iPhone and iPad - any idea how I get it back?

    My Mac mail has disappeared from my iPhone and iPad - any idea how I get it back?

    You access Facetime through the Contacts app - there is no Facetime app on the phone.

  • Some mac app icons disappears and mac App Store didn't open

    some mac app icons disappears and mac appstore cant open

    Please read this whole message before doing anything.
    This procedure is a test, not a solution. Don’t be disappointed when you find that nothing has changed after you complete it.
    Step 1
    The purpose of this step is to determine whether the problem is localized to your user account.
    Enable guest logins* and log in as Guest. Don't use the Safari-only “Guest User” login created by “Find My Mac.”
    While logged in as Guest, you won’t have access to any of your personal files or settings. Applications will behave as if you were running them for the first time. Don’t be alarmed by this; it’s normal. If you need any passwords or other personal data in order to complete the test, memorize, print, or write them down before you begin.
    Test while logged in as Guest. Same problem?
    After testing, log out of the guest account and, in your own account, disable it if you wish. Any files you created in the guest account will be deleted automatically when you log out of it.
    *Note: If you’ve activated “Find My Mac” or FileVault, then you can’t enable the Guest account. The “Guest User” login created by “Find My Mac” is not the same. Create a new account in which to test, and delete it, including its home folder, after testing.
    Step 2
    The purpose of this step is to determine whether the problem is caused by third-party system modifications that load automatically at startup or login, by a peripheral device, or by corruption of certain system caches.
    Disconnect all wired peripherals except those needed for the test, and remove all aftermarket expansion cards. Boot in safe mode and log in to the account with the problem. Note: If FileVault is enabled on some models, or if a firmware password is set, or if the boot volume is a software RAID, you can’t do this. Ask for further instructions.
    Safe mode is much slower to boot and run than normal, and some things won’t work at all, including sound output and Wi-Fi on certain models.  The next normal boot may also be somewhat slow.
    The login screen appears even if you usually log in automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
    Test while in safe mode. Same problem?
    After testing, reboot as usual (i.e., not in safe mode) and verify that you still have the problem. Post the results of steps 1 and 2.

  • My creative cloud app that at the top of my Mac screen has disappeared where can I find it?

    My creative cloud Icon that is normally positioned at the top right of my Mac screen on the menu bar - (Creative Cloud Connection preview Icon?)
    Its disappeared where can I find it, and put it back ?
    I have opened Photoshop and at the top under help I clicked on check for up dates and it comes up for about 5 seconds saying checking for up dates and then it cuts out and brings up a message that says Adobe Application Manager quite unexpectedly.
    I have tried to reboot everything and install Creative Cloud desk top and it gets half way and then stops, just sits in one place unable to down load.

    Nzdmalan the Adobe Creative Cloud application can be found in your Applications folder.  Are you able to access the application itself?  Is your computer managed by an I.T. department?

  • Mac Mini keeps disappearing from network

    I have a 2009 Mac Mini running 10.9.1 that is serving as a media center computer. Plex Media Server is on this machine along with my collection of movies and TV shows. I frequently access this machine using Plex clients, both on Mac and Roku, and also via file sharing and screen sharing on other macs. I almost always manage this machine through screen sharing, which makes this problem extremely frustrating.
    Basically this mac keeps disappearing from my network. I can see it under "Shared" in finder on another computer, but when I click on it it hangs on "connecting" for a while and then just disappears. Same thing when trying to access via the Plex client on Roku. Sometimes I try to play something and it tells me to make sure my server is connected and running, and sometimes it doesn't even see my Plex media server at all.
    I have screen sharing and file sharing enabled, and the firewall is set up to allow incoming connections for screen sharing, file sharing, and also Plex and all its helper programs. I don't think any of these should be the issue because I can access the mini with no problems SOME of the time just not all the time. Seems like if I haven't connected for some unknown amount of time this problem crops up. When it doesn't work I have to trot down to the basement, turn on the monitor (100" projection screen, so kind of annoying) and restart the computer. I have tried toggling "Put hard disks to sleep when possible," and that didn't seem to have any effect. I also have the energy saver set to wake for network access.
    I do not recall having this problem as often, if ever, before I upgraded to Mavericks. Not sure if that could be part of the issue. One other quirk since upgrading to Mavericks is that upon every restart I am asked if I want to allow incoming connections for Plex and Connect 360, both of which are listed in the firewall preferences ad allowed programs.
    Can anybody help?

    See if it's related to this...
    It also seems to be related to later OSX versions, like 10.8.x & 10.9.x
    The 2012 macs (and later apparently) (also later OSX versions on earlier Macs can do it also), not waking normally from sleep after hours being in sleep. (noted here ...
    http://www.xlr8yourmac.com/archives/feb13/022813.html#2012macswontwake
    "Why 2012 iMac/2012 Mac Mini won't Wake After Hours of Sleep (Hibernates/Powers Off)")
    The sleepimage file still reappears even if never slept. Delete it (hibernate off, etc) - within minutes its back.
    A note on that here - http://www.xlr8yourmac.com/feedback/Chameleon_SSD_Optimizer.html
    About iMac sleep...
    http://forums.macrumors.com/showthread.php?t=1529750
    Try this: "sudo pmset autopoweroff 0" and "sudo pmset standby 0"
    http://xlr8yourmac.com/archives/sep13/091313.html#10.8.5SleepEjectTip
    One user reported that the opposite worked...
    Try this: "sudo pmset autopoweroff 1" and "sudo pmset standby 1"

  • New Mac Mini - Dock Disappearing

    I just got a new mac mini and I am using it as a media server. I am controlling through screen sharing and sometimes with air mouse. Other than that, nothing strange as far as applications running or downloaded.
    Several times now, the dock has disappeared. I cannot click on the desktop or the Apple icon in the top left corner - but the application windows that are open continue to work - iTunes and Safari.
    I have tried several combinations of disconnecting air mouse and screen sharing, but nothing seemed to effect what is wrong.
    Any suggestions as to what is wrong?

    I suspect the applications at hand could be crashing... It could be a RAM problem.
    Slide your Leopard/Snow Leopard disc into the drive and hold D when booting to start the Apple Hardware Test.
    Good luck!
    ~Yoma

  • .Mac address keeps disappearing

    Hello,
    I'm using 2 mail accounts on my iphone - one is my own domain via pop, the other is a .mac address. About once every other day the .mac address account completely disappears from my phone without me having touched the settings on either my phone or my computer.
    Has this happened? Should I be unchecking something in iTunes to resolve this?
    Thanks

    See if it's related to this...
    It also seems to be related to later OSX versions, like 10.8.x & 10.9.x
    The 2012 macs (and later apparently) (also later OSX versions on earlier Macs can do it also), not waking normally from sleep after hours being in sleep. (noted here ...
    http://www.xlr8yourmac.com/archives/feb13/022813.html#2012macswontwake
    "Why 2012 iMac/2012 Mac Mini won't Wake After Hours of Sleep (Hibernates/Powers Off)")
    The sleepimage file still reappears even if never slept. Delete it (hibernate off, etc) - within minutes its back.
    A note on that here - http://www.xlr8yourmac.com/feedback/Chameleon_SSD_Optimizer.html
    About iMac sleep...
    http://forums.macrumors.com/showthread.php?t=1529750
    Try this: "sudo pmset autopoweroff 0" and "sudo pmset standby 0"
    http://xlr8yourmac.com/archives/sep13/091313.html#10.8.5SleepEjectTip
    One user reported that the opposite worked...
    Try this: "sudo pmset autopoweroff 1" and "sudo pmset standby 1"

  • Mac HD icon disappeared

    My MAC HD icon has disappeared from the desktop and finder sidebar, how do i get it back?

    Open Finder's preferences from the Finder menu. Click on the General icon in the toolbar, check the boxes for what you want displayed on the Desktop. Click on the Sidebar icon to configure the sidebar items.

  • Since I started using Gmail, emails on my Mac Pro are disappearing

    I started using Gmail about two months ago.  Now (for the first time ever) all of a sudden emails that have been downloaded to my desktop Mac Pro's Mail are disappearing.  It seems like it's random emails that are disappearing, not necessarily all from a certain date range or anything.
    Am I doing something wrong??
    Tks!
    B

    Try rebuilding your mailbox and reindexing Mail. If the meassages are there, they should be 'restored'.
    Rebuild mailbox
    Reindex messages

  • "On my Mac" icon appears, disappears at launch

    When I launch my Mail program, an "on my mac" icon appears in the mailboxes column for a few seconds and then disappears.
    Why is this happening?

    is there someone that can answer my question?

  • Incoming AOL mail in Mac MAIL Inbox disappears after a week

    I´ve setup my AOL e-mail accounts in Mac MAIL. Receiving and sending mail via my AOL accounts works fine, but incoming mail will stay only for one week in the Incoming mail folder of Mac MAIL. After one weeks it disappears from the Incoming mail folder and it´s not longer available in MAIL at all. (I can only access it throught the AOL software or AOL Communicator themself, where it´s archived.). Sent (AOL) mail on the other side is still available in the Sent folder of MAIL. Is there any way to keep/store the Received AOL mail in Mac MAIL?
    Mac Mini   Mac OS X (10.4.5)   AOL mail account in Mac MAIL
    Mac Mini   Mac OS X (10.4.5)  

    Hi Padua & JWurzak!
    I don't know if this will help, but, in your AOL Preferences > Mail: under Automation, do you have the two options below checked?
    Save the mail I read
    Save the mail I send
    Also, in AOL Preferences > Filing Cabinet: do you have Automatically delete items in my filing cabinet checked, and Never selected, in the contextual menus below?
    ali b

  • Why Does My Mac Menu Bar Disappear While I Am In Safari?

    How can I reset so my Mac tool bar shows in Safari

    I had a problem in Yosemite where the top menu just disappeared, so I could not even tell if I was in Firefox or Safari. I could not see the toolbar which contained, for example, "Safari File Edit View History Bookmarks Develop Window Help". The same apple for the Firefox, Excel and all the other top toolbars.
    I accidentally solved it when I was in Excel and pressed option-command-v. This locked up and destroyed my Excel Spreadsheet and there was no "Undo" option on that command either. The side effect was that the top toolbar came back. It was a fault I have never seen before and one which I could not easily find on ant websites. Your fault seems to be one of the closest to what I had.

  • Signature in Mac Mail keeps disappearing

    I have to keep pasting the same signature in every e-mail, it will not retain my customer signature after the mail application has been closed. Couldn't find much info on this online, does anyone have any ideas?

    I have the exact same problem.  The image in the signature keeps disappearing.  I can speculate that closing the mail app causes it to "forget" the image whilst leaving an empty Bo's in its place.
    I'm using iOS 7 on iPad air.
    Apple:  PLEASE HELP this should not be.!

Maybe you are looking for