How to re install mac operating system?

what is my problem?
I downloaded a pirated version of Iwork. After that My computer got slower and I am having problems with connecting wifi Internet.
What İ want:
I want to reinstall my Mac operating system and start from new. May be My Mac is affected by virus...
Please tell me how to reinstall mac operating system...
Details of My Macbookpro...
MBP 13.3/2.5/2*2GB/500/SD-ITP
Model no. A1278
Thanks for reading it...

I don't think this is iServices, as that's quite old at this point and would seem to be extinct. Plus, as MadMacs0 points out, Mac OS X includes built-in definitions for iServices. (Of course, depending on how you downloaded it, you may have bypassed Mac OS X's security. Some torrent apps or other downloaders used for illicit purposes don't properly set the quarantine flag, so Mac OS X's security system never looks at the files downloaded.)
However, any time you install pirated software, all bets are off. It may not actually be iServices, but there's nothing to prevent someone from embedding something malicious in what you downloaded. It may not even be truly malicious... could be legit software used for malicious purposes.
I'd agree with nbar that you should wipe the hard drive clean and start fresh. (I disagree with him that a secure erase is necessary... that will not make your computer any safer than just erasing normally. The only thing that will do beyond a normal erase is ensure that file recovery software can't recover anything from your hard drive.)
If the instructions for wiping the hard drive are giving you trouble, try my instructions here:
How to reinstall Mac OS X from scratch
In the future, never install anything pirated on your computer! That's like handing a known criminal your wallet and trusting him to give it back to you intact (or at all).

Similar Messages

  • How do I install an operating system on my erased hard drive when I get the error "This item is unavailable"?

    So i erased my MacBook's hard drive trying to get a fresh, clean system install. After erasing, I tried to install a new OS X with the Recovery drive but after entering my Apple ID it simply says "This item is currently unavailable, Please try again later." So now my computer has no operating system on it, and I can't get one.

    You may need to do the following. Check this to be sure you can: Computers that can be upgraded to use OS X Internet Recovery. If you are OK:
    Install OS X Using Internet Recovery
    Be sure you backup your files to an external drive or second internal drive because the following procedure will remove everything from the hard drive.
    Boot to the Internet Recovery HD:
    Restart the computer and after the chime press and hold down the COMMAND-OPTION- R keys until a globe appears on the screen. Wait patiently - 15-20 minutes - until the Recovery main menu appears.
    Partition and Format the hard drive:
    Select Disk Utility from the main menu and click on the Continue button.
    After DU loads select your newly installed hard drive (this is the entry with the mfgr.'s ID and size) from the left side list. 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. Click on the Options button, set the partition scheme to GUID then click on the OK button. Set the format type to Mac OS Extended (Journaled.) Click on the Partition button and wait until the process has completed. Quit DU and return to the main menu.
    Reinstall OS X: Select Reinstall OS X and click on the Install button. Be sure to select the correct drive to use if you have more than one.
    Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
    This should restore the version of OS X originally pre-installed on the computer.
    If the above does not work, then you have to first install Snow Leopard:
    Clean Install of Snow Leopard
         1. Boot the computer using the Snow Leopard Installer Disc or the Disc 1 that came
             with your computer.  Insert the disc into the optical drive and restart the computer.
             After the chime press and hold down the  "C" key.  Release the key when you see
             a small spinning gear appear below the dark gray Apple logo.
         2. 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 the hard drive entry from the left side list (mfgr.'s ID and drive
             size.)  Click on the Partition tab in the DU main window.  Set the number of
             partitions to one (1) from the Partitions drop down menu, click on Options button
             and select GUID, click on OK, then set the format type to MacOS Extended
             (Journaled, if supported), then click on the Apply button.
         3. When the formatting has completed quit DU and return to the installer.  Proceed
             with the OS X installation and follow the directions included with the installer.
         4. When the installation has completed your computer will Restart into the Setup
             Assistant. After you finish Setup Assistant will complete the installation after which
             you will be running a fresh install of OS X.  You can now begin the update process
             by opening Software Update and installing all recommended updates to bring your
             installation current.
    Download and install Mac OS X 10.6.8 Update Combo v1.1.
    You can now upgrade from the App Store, but right now Apple's servers are not working for Snow Leopard users, so be patient and keep trying to download Yosemite.

  • How do I install the operating system Windows 7 on a new hard drive?

    Good morning ¿ how I can install windows 7 home premium on a new hard drive?, Disk damage has my laptop windows 7 home premium 32 bit and I have to buy a new hard drive, but not as I have already installed the new because I do not have installation CD because it is laptop, thanks. My laptop is a satellite L455-S5975 .
    For I CAN NOT get the recovery disks, and I'm not in USA. There will be a way to get it via download?
    My English is not very good, excuse me if I do not understand.

    Satellite L455-S5975 
    I CAN NOT get the recovery disks, and I'm not in USA. There will be a way to get it via download?
    There is no opportunity to download it, Richo. Your best bet is to have an acquaintance in the USA, Latin America, or Canada order the recovery discs and ship them to you.
    -Jerry

  • How do I install the operating system on a store bought hard drive?

    I purchased a hard drive from best buy to replace the one that died on my hp G60-501.  When I try to run the system install disk, it runs through the entire thing (around 1.5 hours).  When it finally finishes, it says that it needs to be reinstalled.  I have done this several times but to no avail.  I was told that the drive needs to be tatooed for HP.  WHat does this mean?  How do I do it?  Is it something that I can do on my own?

    There should be no need to tattoo anything. What type of system install disk are you using? Is it the one you made when the computer was new using the DVD burner? I am suspecting a problem with the recovery disk. What brand of hard drive is it? We can get you a utility disk for the drive and I suggest wiping it clean and starting over. You should be able to order an HP recovery disk or just use a retail or OEM Windows disk.

  • HT1338 i asked for how i can setup mac operating system in my macbook ? note that my labtop runinig xp.

    i need help   i using windows xp  in my macbook and i want to setup mac os x v 10.7  but the macbook not responding to the cd .the machine stoped with the apple logo    what can i do please....

    mohamed1988 wrote:
    i need help   i using windows xp  in my macbook and i want to setup mac os x v 10.7  but the macbook not responding to the cd ....
    Are you saying you want to install 10.7 on your MacBook and you already have Windows XP installed in BootCamp? 10.7 doesn't come on a cd - it's a download purchased from Apple's App Store. What is on the cd? Which MacBook do you have and what Mac OS are you currently using?

  • How do I re-install the operating system on my BlackBerry Torch 9800 - I am sure it is hacked.

    Greetings,
    Can someone point me to instructions on how to re-install the operating system on a BlackBerry Torch 9800 and then upgrade it to the latest release?
    I have done this several times in the past, due to recurring hacking, but have lost the instructions. 
    Thank you very much for your help.
    Regards,
    Jean-Pierre
    P.S. I would preffer a releas of the OS without any pre-install applicaitons such as Twitter, Facebook, LinkedIn, 
            and above all, Whastapp. Thank you.

    Hi and Welcome to the Community!
    The simplest way is to, on a PC (you cannot do this on MAC):
    1) Make sure you have a current and complete backup of your BB...you can find complete instructions via the link in my auto-sig below.
    2) Uninstall, from your PC, any BB OS packages
    3) Make sure you have the BB Desktop Software already installed
    http://us.blackberry.com/software/desktop.html
    4) Download and install, to your PC, the BB OS package you desire:
    http://us.blackberry.com/support/downloads/downloa​d_sites.jsp
    It is sorted first by carrier -- so if all you want are the OS levels your carrier supports, your search will be quick. However, some carriers are much slower than others to release updates. To truly seek out the most up-to-date OS package for your BB, you must dig through and find all carriers that support your specific model BB, and then compare the OS levels that they support.
    5) Delete, on your PC, all copies of VENDOR.XML...there will be at least one, and perhaps 2, and they will be located in or similarly to (it changes based on your Windows version) these folders:
    C:\Program Files (x86)\Common Files\Research In Motion\AppLoader
    C:\Users\(your Windows UserName)\AppData\Roaming\Research In Motion\BlackBerry\Loader XML
    6a) For changing your installed BB OS level (upgrade or downgrade), you can launch the Desktop Software and connect your BB...the software should offer you the OS package you installed to your PC.
    6b) Or, for reloading your currently installed BB OS level as well as for changing it, bypass the Desktop Software and use LOADER.EXE directly, by proceeding to step 2 in this process:
    http://supportforums.blackberry.com/t5/BlackBerry-​Device-Software/How-To-Reload-Your-Operating-Syste​...
    Note that while written for "reload" and the Storm, it can be used to upgrade, downgrade, or reload any BB device model -- it all depends on the OS package you download and install to your PC.
    If, during the processes of 6a or 6b, your BB presents a "507" error, simply unplug the USB cord from the BB and re-insert it...don't do anything else...this should allow the install to continue.
    If you are on MAC, you are limited to only your carriers sanctioned OS packages...but can still use any levels that they currently sanction. See this procedure:
    KB19915How to perform a clean reload of BlackBerry smartphone application software using BlackBerry Desktop Software
    Good luck and let us know!
    Occam's Razor nearly always applies when troubleshooting technology issues!
    If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
    Join our BBM Channels
    BSCF General Channel
    PIN: C0001B7B4   Display/Scan Bar Code
    Knowledge Base Updates
    PIN: C0005A9AA   Display/Scan Bar Code

  • CS6 Camera Raw - I can now only crop using aspect ratio in the custom crop setting rather than being able to set the dims in cm and inches? anyone know how to revert? ever since installing new mac operating system things have been strange!

    CS6 Camera Raw - I can now only crop using aspect ratio in the custom crop setting rather than being able to set the dims in cm and inches? anyone know how to revert? ever since installing new mac operating system things have been strange!

    Hi Kglad.
    I have looked at all of my settings both in Bridge and CS6 Photoshop regarding Camera Raw. I am at a loss how to set the crop tool in cm or inches as I once did - now the only option is to crop using ratios of 1:1 etc etc - This is infuriating as lots of my square crops I could set at 10" x 10'' specifically to print one to one to fit frame and mount size -
    Now if cropping using bloody aspect ratio of 1:1 (square) the actual dims of the crop are roughly 4.25 inches x 4.25 inches. this means I then have to open the whole image in photoshop in order to crop at the dims I have set! It was so much quicker in terms of batch cropping in camera raw being able to set dims in centimetres and inches but they have gone and mucked around with it, with the new bloody update! Unless you are an absolute genius and know how I can go back to having an option of CM, Inches and aspect ratio within the custom crop settings? (Please say you do)
    here is the new tutorial for CC -  my guess is they have scrapped the control we had over the custom crop settings
    Cropping Images In Adobe Camera Raw 8

  • HT1338 Purchased a used macbook pro with Mountain Lion. My old Mac runs Snow Leopard is backed up to Time machine. How do I register the operating system to me and how do I use Time Machine to move my files to the new used computer?

    Purchased a used macbook pro with Mountain Lion. My old Mac runs Snow Leopard is backed up to Time machine. How do I register the operating system to me and how do I use Time Machine to move my files to the new used computer?

    If you look at the User Tips tab, you will find a write up on just this subject:
    https://discussions.apple.com/docs/DOC-4053
    The subject of buying/selling a Mac is quite complicated.  Here is a guide to the steps involved. It is from the Seller's point of view, but easily read the other way too:
    SELLING A MAC A
    Internet Recovery, and Transferability of OS & iLife Apps
    Selling an Old Mac:
    • When selling an old Mac, the only OS that is legally transferable is the one that came preinstalled when the Mac was new. Selling a Mac with an upgraded OS isn't doing the new owner any favors. Attempting to do so will only result in headaches since the upgraded OS can't be registered by the new owner. If a clean install becomes necessary, they won't be able to do so and will be forced to install the original OS via Internet Recovery. Best to simply erase the drive and revert back to the original OS prior to selling any Mac.
    • Additionally, upgrading the OS on a Mac you intend to sell means that you are leaving personally identifiable information on the Mac since the only way to upgrade the OS involves using your own AppleID to download the upgrade from the App Store. So there will be traces of your info and user account left behind. Again, best to erase the drive and revert to the original OS via Internet Recovery.
    Internet Recovery:
    • In the event that the OS has been upgraded to a newer version (i.e. Lion to Mountain Lion), Internet Recovery will offer the version of the OS that originally came with the Mac. So while booting to the Recovery Disk will show Mountain Lion as available for reinstall since that is the current version running, Internet Recovery, on the other hand, will only show Lion available since that was the OS shipped with that particular Mac.
    • Though the Mac came with a particular version of Mac OS X, it appears that, when Internet Recovery is invoked, the most recent update of that version may be applied. (i.e. if the Mac originally came with 10.7.3, Internet Recovery may install a more recent update like 10.7.5)
    iLife Apps:
    • When the App Store is launched for the first time it will report that the iLife apps are available for the user to Accept under the Purchases section. The user will be required to enter their AppleID during the Acceptance process. From that point on the iLife apps will be tied to the AppleID used to Accept them. The user will be allowed to download the apps to other Macs they own if they wish using the same AppleID used to Accept them.
    • Once Accepted on the new Mac, the iLife apps can not be transferred to any future owner when the Mac is sold. Attempting to use an AppleID after the apps have already been accepted using a different AppleID will result in the App Store reporting "These apps were already assigned to another Apple ID".
    • It appears, however, that the iLife Apps do not automatically go to the first owner of the Mac. It's quite possible that the original owner, either by choice or neglect, never Accepted the iLife apps in the App Store. As a result, a future owner of the Mac may be able to successfully Accept the apps and retain them for themselves using their own AppleID. Bottom Line: Whoever Accepts the iLife apps first gets to keep them.
    SELLING A MAC B
    Follow these instructions step by step to prepare a Mac for sale:
    Step One - Back up your data:
    A. If you have any Virtual PCs shut them down. They cannot be in their "fast saved" state. They must be shut down from inside Windows.
    B. Clone to an external drive using using Carbon Copy Cloner.
    1. Open Carbon Copy Cloner.
    2. Select the Source volume from the Select a source drop down menu on the left side.
    3. Select the Destination volume from the Select a destination drop down menu on the right
    side.
    4. Click on the Clone button. If you are prompted about creating a clone of the Recovery HD be
    sure to opt for that.
    Destination means a freshly erased external backup drive. Source means the internal
    startup drive. 
    Step Two - Prepare the machine for the new buyer:
    1. De-authorize the computer in iTunes! De-authorize both iTunes and Audible accounts.
    2, Remove any Open Firmware passwords or Firmware passwords.
    3. Turn the brightness full up and volume nearly so.
    4. Turn off File Vault, if enabled.
    5. Disable iCloud, if enabled: See.What to do with iCloud before selling your computer
    Step Three - Install a fresh OS:
    A. Snow Leopard and earlier versions of OS X
    1. Insert the original OS X install CD/DVD that came with your computer.
    2. Restart the computer while holding down the C key to boot from the CD/DVD.
    3. Select Disk Utility from the Utilities menu; repartition and reformat the internal hard drive.
    Optionally, click on the Security button and set the Zero Data option to one-pass.
    4. Install OS X.
    5. Upon completion DO NOT restart the computer.
    6. Shutdown the computer.
    B. Lion and Mountain Lion (if pre-installed on the computer at purchase*)
    Note: You will need an active Internet connection. I suggest using Ethernet if possible because
    it is three times faster than wireless.
    1. Restart the computer while holding down the COMMAND and R keys until the Mac OS X
    Utilities window appears.
    2. Select Disk Utility from the Mac OS X Utilities window and click on the Continue button. 
    3. After DU loads select your startup volume (usually Macintosh HD) from the left side list. Click
    on the Erase tab in the DU main window.
    4. Set the format type to Mac OS Extended (Journaled.) Optionally, click on the Security button
    and set the Zero Data option to one-pass.
    5. Click on the Erase button and wait until the process has completed.
    6. Quit DU and return to the Mac OS X Utilities window.
    7. Select Reinstall Lion/Mountain Lion and click on the Install button.
    8. Upon completion shutdown the computer.
    *If your computer came with Lion or Mountain Lion pre-installed then you are entitled to transfer your license once. If you purchased Lion or Mountain Lion from the App Store then you cannot transfer your license to another party. In the case of the latter you should install the original version of OS X that came with your computer. You need to repartition the hard drive as well as reformat it; this will assure that the Recovery HD partition is removed. See Step Three above. You may verify these requirements by reviewing your OS X Software License.

  • How do I reinstall my operating system after hard drive upgrade on MacBook pro?  I have Snow Leopard install disc

    How do I reinstall my operating system (Snow Leopard) after a hard drive upgrade. I did a Time Machine backup before the new hard drive was installed. I put in the Snow Leopard install disc and don't get the icon I'm supposed to double click to install Snow Leopard and then the backup.
    HELP PLEASE!!

    Is the new HHD in the MBP?
    Is the new HDD formatted Mac OS Extended (Journaled)?
    Where is the old HDD? In an enclosure?  What is on the old HDD, your user data?  Is the Snow Leopard System on it?
    Do you have a separate Time Machine Disk with your user data?
    Answers to these questions should give an exact status of your situation so that one can proceed in the right direction.
    Ciao.

  • If I have installed an operating system in one language and I want to change to another language how to do?

    If I have installed an operating system in one language and I want to change to another language how to do?

    I mean I can change the system language without having to erase me things in my MAC?

  • How do i update my mac software and how do I know which operating system I am on

    how do i update my mac software and how do I know which operating system I am on

    1. Choose About this Mac from the Apple menu to check the installed version.
    2. Incremental updates are available in the Software Update pane of System Preferences or the Mac App Store's Updates tab. The source for full version upgrades varies; 10.6 through 10.8 are in the online Apple Store, and 10.9 is in the Mac App Store.
    (95523)

  • Can i install an operating system on a mac with a wiped hard drive?

    I recently got a used mac tower from a supplier, and it has a wiped hard drive, the supplier did not reinstall the mac operating system, so I need to know if I may need to pay to have it installed for me or get a CD and license key like windows?

    Start with Snow Leopard.
    Snow Leopard Purchase
    Check that your computer is compatible with Mountain Lion/Mavericks/Yosemite.
    To check the model number hold down the option/alt key, go to the Apple menu and select System Information.
    iMac (Mid 2007 or newer) model number 7,1 or higher
    MacBook (Late 2008 Aluminum, or Early 2009 or newer) model number 5,1 or higher
    MacBook Pro (Mid/Late 2007 or newer) model number 3,1 or higher
    MacBook Air (Late 2008 or newer) model number 2,1 or higher
    Mac mini (Early 2009 or newer) model number 3,1 or higher
    Mac Pro (Early 2008 or newer) model number 3,1 or higher
    Xserve (Early 2009) model number 3,1 or higher
    Your Mac needs:
    OS X v10.6.8 or OS X Lion already installed
    2 GB or more of memory (More is better - 4 GB minimum seems to be the consensus)
    8 GB or more of available space

  • I have an older I Mac operating system 10.6.8 and want to upgrade.  I've been told that the only upgrade available for my machine is 10.7.5.  On what website can I find this upgrade or how do I find this upgrade on the Apple website?

    I have an older I Mac operating system 10.6.8 and want to upgrade.  I've been told that the only upgrade available for my machine is 10.7.5.  On what website can I find this upgrade or how do I find this upgrade on the Apple website?

    Choose About this Mac from the Apple menu, check if the computer has at least a Xeon or Core 2 Duo(not Core Duo) CPU and 2GB of RAM, and if it does, click here and order a download code for Lion 10.7.
    Back up your data and check your applications for compatibility before upgrading. In particular, Mac OS X 10.7 and newer don't support PowerPC programs such as versions of Microsoft Office prior to 2008.
    (116475)

  • How can i re-install the operating system without deleting my files on the computer

    I'm Trying to re-install the operating system on my macbook, and i dont know, if i can only re-install the OS without deleting the Data on the computer.

    If the Snow Leopard version on your Snow Leopard DVD is lower than the Snow Leopard version on your computer, you will NOT in any case be able to re-install the OS the way you want it. You will only be able to erase your disk and then reinstall the OS.
    It will only "upgrade" and keep your files if the Mac OS X version of your Snow Leopard DVD is newer than the Snow Leopard version on your computer.

  • I have bought Mac Os X Mauntain Lion Operating System for my mac book pro.I reinstalled my system.Now I cannot download it.It says"This product is not avaible for Turkish App Store".How can I get the Operating System?

    I have bought Mac Os X Mauntain Lion Operating System for my mac book pro some time ago.I then reinstalled my system.The original operating System on my Mac is 10.7 Lion. Now I cannot download Mac Os X Mauntain Lion Operating System.It says"This product is not avaible for Turkish App Store".How can I get this Operating System?

    http://www.apple.com/tr/support/

Maybe you are looking for

  • Beginners guide screwed|Is impossible to edit large pages on the wiki

    When you're trying to edit a large page on the wiki you get this message: WARNING: This page is 40 kilobytes long; some browsers may have problems editing pages approaching or longer than 32kb. Please consider breaking the page into smaller sections.

  • Putting files back on computer

    I have a 20 gig. ipod. When my computer crashed I lost all my songs. Is there a way to put the songs back into my library from my ipod? Thanks....beachbum

  • Do you Guys have any plan to release Photoshop for linux platform?

    Hi Guys, Do you have existing any photoshop or any plan to release Photoshop for linux platform? Thanks, Shailesh

  • Update available to address iFrame and button issues

    We just released an update to the DPS tools that addresses the issues around HTML/iFrame and buttons in release 25. You can download the updated components by following the links at http://www.adobe.com/go/learn_dps_install_en. Neil

  • Moving all reports from Bex to BO

    Hello all, Post Upgrade from SAP BW 3.5 to 7.0. we are moving all the Bex reports to Business objects .....voyager, webi, crystal , xcelcius. Please advise on the strategy that needs to be used. If anyone moved their all their reports from BEX to BO,