Tried to erase OS X Yosemite on 2011 Macbook Pro, can't reinstall any OS

Hi there
I have a 2011 13" Macbook Pro which was running OS Yosemite. I just tried to erase the hard drive, following the instructions here:
OS X Yosemite: Erase and reinstall OS X
However, when I got to this step:
Select Reinstall OS X, click Continue, then follow the onscreen instructions.
It couldn't find any OS to reinstall, and said to contact Apple Care, which, unluckily for me, has run out. The screen is currently stuck on showing a ( / ) symbol.
Could anyone please advise what to do from here? Thanks a million!

If you literally wiped your hard drive as part of this adventure, and if the machine originally shipped with Snow Leopard, you will need to do one of the following:
Reinstall from the original disks that shipped with the machine, and upgrade to OS X 10.6.8 and all software updates
Purchase an OS X 10.6.3 retail disk from the Apple Online Store, then perform software updates until no more are available to get to 10.6.8.
Once you have 10.6.8 fully updated on your MBP, then via the Apple Online Store you can purchase an upgrade (content code for OS X App Store) to Lion, or Mountain Lion. Mavericks is not available. If you just want to reinstall Yosemite, you can obtain the upgrade from the OS X App Store application in your 10.6.8 Dock.
Understand that any downloadable OS X installer will self-remove after the installation. You may wish to copy the installer to an external drive before updating Snow Leopard to newer OS X releases.
Once you have sorted the above, perform a full external backup of your OS X installation.

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Late 2011 MacBook Pro can't boot after Yosemite install

After installing Yosemite on this late 2011 MacBook Pro it stops about a third of the way into booting up. It displays a null sign. I can boot into recovery disk, or external HD (I don't have a backup of this system, but can boot from my MacBook Air's clone) if I use option-R or just option at startup. It won't go into Safe Mode. From the ext HD I have reinstalled Yosemite on the MBP, but it still freezes mid-boot. Disk Utility repair permissions, repair HD, zap PRAM, SMC, I've tried all of these (from reading advice here, and PM from Ogelthorpe). I have copied the Etre Report below. Suggestions?
EtreCheck version: 2.1.8 (121)
Report generated March 24, 2015 at 2:16:55 PM EDT
Download EtreCheck from http://etresoft.com/etrecheck
Click the [Click for support] links for help with non-Apple products.
Click the [Click for details] links for more information about that line.
Hardware Information: ℹ️
    MacBook Pro (13-inch, Late 2011) (Technical Specifications)
    MacBook Pro - model: MacBookPro8,1
    1 2.4 GHz Intel Core i5 CPU: 2-core
    4 GB RAM Upgradeable
        BANK 0/DIMM0
            2 GB DDR3 1333 MHz ok
        BANK 1/DIMM0
            2 GB DDR3 1333 MHz ok
    Bluetooth: Old - Handoff/Airdrop2 not supported
    Wireless: en1: 802.11 a/b/g/n
    Battery Health: Normal - Cycle count 431
Video Information: ℹ️
    Intel HD Graphics 3000
        Color LCD 1280 x 800
System Software: ℹ️
    OS X 10.10.3 (14D113c) - Time since boot: 0:25:56
Disk Information: ℹ️
    ST9500325ASG disk0 : (500.11 GB)
        EFI (disk0s1) <not mounted> : 210 MB
        Recovery HD (disk0s3) <not mounted> [Recovery]: 650 MB
        Macintosh HD (disk1) /Volumes/Macintosh HD : 498.88 GB (345.40 GB free)
            Core Storage: disk0s2 499.25 GB Online
    MATSHITADVD-R   UJ-8A8
USB Information: ℹ️
    Apple Inc. FaceTime HD Camera (Built-in)
    Apple Inc. BRCM2070 Hub
        Apple Inc. Bluetooth USB Host Controller
    Apple Inc. Apple Internal Keyboard / Trackpad
    Western Digital My Book 1140 2 TB
        EFI (disk2s1) <not mounted> : 210 MB
        MBPClone (disk2s2) /Volumes/MBPClone : 249.35 GB (119.30 GB free)
        Recovery HD (disk2s3) <not mounted> [Recovery]: 784 MB
        Clone27iMac (disk2s4) /Volumes/Clone27iMac : 1.08 TB (918.40 GB free)
        Recovery HD (disk2s5) <not mounted> [Recovery]: 650 MB
        MediaorWhatever (disk2s6) / : 665.53 GB (583.65 GB free)
        Recovery HD (disk2s7) <not mounted> [Recovery]: 650 MB
    Apple Computer, Inc. IR Receiver
Thunderbolt Information: ℹ️
    Apple Inc. thunderbolt_bus
Gatekeeper: ℹ️
    Mac App Store and identified developers
Kernel Extensions: ℹ️
        /System/Library/Extensions
    [not loaded]    com.ricoh.print.kext.USBPrintClass (3.01) [Click for support]
        /Volumes/MBPClone/Applications/DiskWarrior.app
    [not loaded]    com.alsoft.Preview (4.4) [Click for support]
        /Volumes/MBPClone/Library/Sophos Anti-Virus/InterCheck.app
    [not loaded]    com.sophos.kext.sav (8.0.14 - SDK 10.5) [Click for support]
Launch Agents: ℹ️
    [loaded]    com.google.keystone.agent.plist [Click for support]
    [running]    net.culater.SIMBL.Agent.plist [Click for support]
Launch Daemons: ℹ️
    [loaded]    com.adobe.fpsaud.plist [Click for support]
    [loaded]    com.bombich.ccc.plist [Click for support]
    [running]    com.bombich.ccchelper.plist [Click for support]
    [loaded]    com.google.keystone.daemon.plist [Click for support]
    [loaded]    com.transcend.TSTRIMHandlerHelp.plist [Click for support]
User Launch Agents: ℹ️
    [loaded]    com.adobe.ARM.[...].plist [Click for support]
User Login Items: ℹ️
    iTunesHelper    Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
    WD Quick View    Application (/Library/Application Support/WDSmartware/WDQuickView.app)
Internet Plug-ins: ℹ️
    o1dbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
    Default Browser: Version: 600 - SDK 10.10
    Flip4Mac WMV Plugin: Version: 2.3.2.6 [Click for support]
    OfficeLiveBrowserPlugin: Version: 12.3.6 [Click for support]
    AdobePDFViewerNPAPI: Version: 10.1.13 [Click for support]
    FlashPlayer-10.6: Version: 16.0.0.305 - SDK 10.6 [Click for support]
    Silverlight: Version: 4.0.50917.0 [Click for support]
    Flash Player: Version: 16.0.0.305 - SDK 10.6 Outdated! Update
    QuickTime Plugin: Version: 7.7.3
    googletalkbrowserplugin: Version: 5.40.2.0 - SDK 10.8 [Click for support]
    iPhotoPhotocast: Version: 7.0 - SDK 10.8
    AdobePDFViewer: Version: 10.1.13 [Click for support]
    Scorch: Version: 6.2.0 [Click for support]
    DirectorShockwave: Version: 12.0.7r148 - SDK 10.6 [Click for support]
3rd Party Preference Panes: ℹ️
    Flash Player [Click for support]
    Flip4Mac WMV [Click for support]
    Perian [Click for support]
    WDQuickView [Click for support]
Time Machine: ℹ️
    Mobile backups: OFF
    Auto backup: NO - Auto backup turned off
    Volumes being backed up:
    Destinations:
        MBP Backup [Local]
        Total size: 299.73 GB
        Total number of backups: 20
        Oldest backup: 2013-03-14 16:58:24 +0000
        Last backup: 2014-02-25 16:24:25 +0000
        Size of backup disk: Excellent
            Backup size 299.73 GB > (Disk size 0 B X 3)
Top Processes by CPU: ℹ️
         5%    WindowServer
         3%    mds
         0%    AppleSpell
         0%    fontd
         0%    mds_stores
Top Processes by Memory: ℹ️
    249 MB    mds_stores
    150 MB    Finder
    116 MB    Dock
    116 MB    Spotlight
    73 MB    ocspd
Virtual Memory Information: ℹ️
    801 MB    Free RAM
    1.59 GB    Active RAM
    785 MB    Inactive RAM
    1.09 GB    Wired RAM
    2.01 GB    Page-ins
    446 KB    Page-outs
Diagnostics Information: ℹ️
    Mar 24, 2015, 01:44:49 PM    Self test - passed
    Mar 22, 2015, 10:30:37 PM    /Library/Logs/DiagnosticReports/VideoMemoryTool_2015-03-22-223037_[redacted].cr ash

Drive Partition and Format
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.
If you are preparing an external or a non-startup drive, then open Disk Utility in your Utilities folder.
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. 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.
4. 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.
5. Set the format type to Mac OS Extended (Journaled.) Click on the Security button, check the button for Zero Data and click on OK to return to the Erase window.
6. Click on the Erase button. The format process can take up to several hours depending upon the drive size.
7. Quit DU when it is finished and return to the installer. Install Snow Leopard. Download and install Mac OS X 10.6.8 Update Combo v1.1.

I lost my music when I tried to authorize my iPod for my new MacBook Pro. Is there any way to get it back?

I was able to get a MacBook Pro for college this year and I tried to transfer my music from my iPod Nano to my laptop. Everything was going smoothy until I had to autherize my laptop for the music. To do this I had to enter my Apple ID and password. I must have typed it in wrng because it asked me if I had forgotten my password. I hit the cancel button thinking I could just try again without having to go through the hassle of making a new password but instead al my music disappeared!
Is there any way to get my music back?
Thank you, MHettich

Copy everything from your old computer or your backup copy of your old computer to your new one.

2011s MacBook Pro won't install Yosemite neither reboot or boot into recovery mode.

Hello everyone, I've searched all around the web and didn't find a solution.
Sorry about my english, btw, I'm from Brasil lol!
I have a 2011s MacBook Pro, used to run Snow Leopard until 2 days ago, when I downloaded Yosemite and restarted the computer to run the installation.
During the process, it stopped at 22%, and said: FILE SYSTEM VERIFY OR REPAIR FAILED.
I tried to reboot on Macintosh HD as usual, but it's not possible, I can't unmount the HD to repair it, can't erase it and I'm a little desperate.
I have a good backup of important files on an external drive, so the best solution for me would be to format the HD again, with the Yosemite image which appears to be running at startup.
Command+ anything at startup doesn't work, probably because the Yosemite install is trying to run...
Any suggestions???
Thank you!

Hey Vince,
I have the same or similar issue. Please forgive my English, as I attended American Public schools
So last night, my MacBook Pro told me hey you want to download this free and amazing new OS called Yosemite?
(I'm adding to your post to hopefully grab more attention and then maybe grab a solution from someone out there..)
I thought yea, no, maybe, okay it's free, they say it is amazing-- why not?!?
So I downloaded and clicked okay to restart and install the new OS.......but it won't install the OS and I get stuck here on this screen.
I have tried restarting about 10 ties. I have tried quitting the install but it won't allow me to boot from Mac HD or my time capsule HD. I tried going into the menu options above but it won't let me repair or reboot or anything to get my MacBook to work again.
It is pretty frustrating. I went from having a working MacBook Pro to having a nightlight.
Vince- if you get a solution or a fix, Please let me know.
Thanks
john

Late 2011 MacBook Pro stuck at spinning wheel of death after a Thunderbolt issue, HD erasing and fresh Lion install from Recovery HD. Please help me!!!

So, I think the title says it all, but to give you a little more info:
I connected my late 2011 MacBook Pro to my TV using a Thunderbolt HDMI adapter, and closed the lid. When I opened it, it wouldn't show the login screen, so I restarted using power button. Got stuck at the Apple logo with the spinning wheel. So I booted the Recovery HD and found out it was a HD problem, so I (reluctantly) erased the HD and installed Lion from scratch. When it rebooted (after DOWNLOADING the Lion components) I got some terminal commands (sorry for not being more specific, still a noob when it comes to Mac) and then the screen faded and a message appeared saying I needed to reboot the computer. So I did. 3 effing times. Then I got stuck AGAIN at the spinning wheel, and I'm currently with that on my screen. I'm trying the forums before calling Apple (my computer's still within the 90 days of warranty) because it's not yet 9 A.M. where I live

can you go back to recovery mode then open disk utility.
in disk utility, higlight the disk, the one saying the brand and size then click on repair disk under first aid tab
if it repairs fine, that's okay
if repair was not successful, go to partition and change current to 1 partition then apply
install lion again
hope this helps

How do I uninstall Yosemite please ? Since I upgraded my 2011 MacBook Pro will not boot up

My 2011 MacBook Pro will not boot up following my upgrade to Yosemite. How do I uninstall or downgrade back to the previous version of OS please ?

You can't downgrade or uninstall unless you first erase the drive. Try the following:
Reinstalling OS X Without Erasing the Drive
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. Alternatively, 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 OS X: Select Reinstall OS X and click on the Continue button.
Note: You will need an active Internet connection. I suggest using Ethernet if possible because it is three times faster than wireless.
Also see:
Reinstall OS X Without Erasing the Drive
Choose the version you have installed now:
OS X Yosemite- Reinstall OS X
Note: You will need an active Internet connection. I suggest using Ethernet
if possible because it is three times faster than wireless.

13" late 2011 MacBook Pro has frozen after Yosemite installation. I can, however, boot from a clone of my MacBook Air that is on an external drive. Despite the fact that I can boot from the external, could it be the RAM that's the prob

My daughter's 13" late 2011 MacBook Pro has frozen (null sign displays) after Yosemite installation. I can, however, boot from a clone of my MacBook Air that is on an external drive. I reinstalled Yosemite on the MBP HD, but it still hangs in mid install. Despite the fact that I can boot from the external, could it be the RAM that's the problem? I'd happily put 8 GB in if it seems probable that would solve the problem. I've tried all the suggested procedures that I've seen posted here. Disk Utility, and my older version of DiskWarrior indicate the HD is OK. I have DiskWarrior 5 on order.

Boot the MBP with the OPTION key down. If successful, you should see two HDD icons, Select the recovery partition (on the right).
From the 4 option menu select Disk Utility.
Run Disk Utility>First Aid, Verify and Repair.
If the disk cannot be repaired, it will have to be replaced.
Ciao.

Unable to install Yosemite on my 2011 Macbook Pro (4gb Ram, 2.4 Ghz intel core 2 duo) machine.

Hello People,
I have been trying to download and install the new Mac Os Yosemite on my 2011 macbook pro which was previously running Snow Leopard 10.6.8. But, for some reason I am not able to install the file even when the download has been completed. This is the message i see every time i try to do a 'retry'. Can anybody please tell me whats going on with the installation process. and how can I fix this problem.

Your model uses:
Maximum Memory
8.0 GB
Memory Slots
2 - 204-pin PC3-8500 (1066 MHz) DDR3 SO-DIMM
So the specifications you provided will not work in your computer. Nor will your computer support 16 GBs.
A MBP 7,1 is a Mid-2010 model, not an Early 2011 model. If you truly have an Early 2011 model then it requires:
Maximum Memory
16 GB (Actual) 8 GB (Apple)
Memory Slots
2 - 204-pin PC-10600 (1333 MHz) DDR3 SO-DIMM
The specs you provided are also not suitable.

After upgrading to Yosemite my wifi is not working on my 2011 MacBook Pro. What happened Apple? Wifi was fine on Mavericks.Yosemite was free. I guess you get what you pay for.

Why is my wifi not working after I installed Yosemite to my 2011 Macbook pro?

Keep it connected to the Power for a while.
Start up in Safe Mode.
http://support.apple.com/kb/PH14204?viewlocale=en_US
Any Bluetooth mouse with failing batteries nearby?

How do i access my installer disc on a 2011 macbook pro as they are virtual now, i have tried to use command r and hold shift on start up

I have, a 2011 macbook pro with osx lion, last year it died, by doing the not getting past the logo and startup gear, i tried doing the data screen repair where u type some code and try and repair, that didnt work so i took it to genius bar and it wasnt in warrenty and they were gonna charge me but as was only 3 weeks over the warrenty period, so they did for free, and the harddrive they installed had a 90 day warrenty and that is ova now, and my mac has now done the same thing again and this time i think was a power interruption at some point and now has a fault, another thing that crossed my mind is that yes this has done this but could they have (to save money and not right offf a new one) given me my same harddrive back and jus wiped it now 5 months down the track its broken again?
The laptop isnt even 18 months old and has broken down twice, my old macbook had 4 5 years not a hiccup.
In conclusion i need to get photoes off it and cant seem to activate safe mode, or do i know how to access the startup disk that the guy did at genius last time, or get to the data screeen that allowed me to attempt to repair the drive. Can someone help me please, i have tried command r and holding shift, meither have worked.

It's hard to know whether your hard drive has actually failed or if your system has just gotten badly corrupt. If the former, unfortunately, there may be no way to get any data off the drive at this point. If there aren't any backups of that data, it will be gone forever, unless perhaps a high-priced (ie, in the thousand dollar range) data recovery service has some luck with it.
If the system and/or hard drive are badly corrupt, the same may be true. Some or all of that data may be irrevocably corrupt by now. However, there are some ways that you can attempt to recover from this situation without paying such huge fees. First, if you have access to another Mac, and both have Firewire ports, you can connect the two using Firewire target disk mode. This will mount the damaged drive as if it were an external hard drive on the second Mac, and could allow you to copy some data from the drive.
Another possibility would be to buy an external hard drive, install Mac OS X on it and boot the machine from that, then copy any data from there that you can.
In both of these cases, it may be helpful to scan the damaged drive for recoverable files using something like Data Rescue.
There are also some possible ways to repair the drive if you can't do either of those things, but any repairs at this point could potentially destroy data. I only recommend this as a last resort. Still, if all other options have failed, try repairing the drive using DiskWarrior. This can fix problems that Disk Utility (and fsck, the command-line tool that it sounds like you may have used) cannot. It is possible that DiskWarrior will be able to get the drive back in working order long enough to get the data recovered, though of course it's also possible the process will be destructive.
If none of the above work, you'll have to seek professional help.

2011 MacBook Pro, 64 bit i7 quad core, upgraded to Lion OSx, Bootcamp installed with Windows 7, wanting to install Windows 8 (don't ask), tried downloading/installing bootcamp 5.0.5033, error message something similar to bootcamp doesn't support this Win

2011 MacBook Pro, 64 bit i7 quad core, upgraded to Lion OSx, Bootcamp installed with Windows 7, wanting to install Windows 8 (don't ask), tried downloading/installing bootcamp 5.0.5033 (both on the mac/windows partitions (actually using a parallel to run Windows)), error message something similar to bootcamp doesn't support this Windows
So the question is am I doing something wrong? Should I just try and install windows 8 through my windows 7 partition and see if I can use the bootcamp 5.05033. Or do I solely have to use the bootcamp to install Windows 8? I'm not too familiar with bootcamp and how it runs.

if you're using parallels and full bootcamp then you're making it 100% more troublesome for youself then it needs to be
bootcamp is running windows directly on the hardware this give full memory and cpu and 3d video game power
running windows in parallels is running a virtual machine where one can't run powerful games and the like but one can have it in a window and change fast between osx and windows
parallels as the only virutal machine (as far as I know) support not have the operating system as a file on the osx harddisk but can access a bootcamp parition as virtual machine but without the benefits bootcamps provides
it's a service parallels provide for those who want both to play games in normal bootcamp and sometimes use windows in a virutal machine
just install it like a normal virtual machine and you need not worry about bootcamp drivers and the likes
plus it would mean that the windows part would be a part of the timemachine bacup of osx
which it is not when it's in bootcamp

Trying to update OS on 2011 macbook pro. stuck on purple screen

trying to update OS on 2011 macbook pro. stuck on purple screen

Ok. Do you remember what you were updating? Like Itunes or a security update. And did you let it complete and install? To install the update, it usually asks for your password and sometime asks you to restart. Here are some options to try. http://support.apple.com/en-us/HT203176

Replacing my HDD in my Early 2011 Macbook Pro...Trying to decide between Samsung 840 EVO 250 gb and Crucial M500 240 gb. Samsung is faster but less "mac-friendly". Should I opt for the Crucial due to the "mac-friendliness"?

I have a S.M.A.R.T error on my current Hitachi drive that came with me Early 2011 Macbook pro. Want to upgrade to SSD.
Trying to decide between Samsung 840 EVO 250gb and Crucial M500 240gb, at this gb range, the Samsung is faster and uses less wattage....ONE PROBLEM...I have read many user experiences that note it is much less mac-friendly...
The software samsung offers is not IOS compatible and some report lower than expected speeds after installation...Also apparently the RAPID MODE of the drive, the fastest drive mode is nonexistant when installed on a Macbook pro?
Should I opt for the slower and more power cosuming Crucial M500 240gb SSD because it is more Mac-friendly? Does anyone have a Samsung 840 EVO 250 gb SSD installed in their macbook pro? What has been your experience?
Thanks ahead of time!
Resoure: http://www.tomshardware.com/reviews/crucial-m500-1tb-ssd,3551.html

I decided against the Evo as there are too many Mac users that have had issues with slow speed on them. Even without these, the main speed that Samsung states for the Evo comes form turbo Write which is a PC only feature as is software dependent.
I'm sorry but Crucials M500 is simply too slow compared to modern drives to be recomended. Read speed is ok, but the write is far too slow for the price.
I've used and installed both a Samsung 840 basic and a Samsung 840 Pro in 2 separate Mac books! and currently have the 840 Pro in my own MacBook Pro and it comes very highly recomended. It's all but the fastest Sata III drive you can buy - A few OCZ drives just edge it but the difference is negligible. Samsung by far have the best reliability though when it comes to SSD's. I've been getting 520Mb/s easily on mine consistently, and without getting a MacBook with a PCIe drive you won't get a faster more reliable drive.
I really would recommend nothing else.

I need the drivers for earl 2011 macbook pro 13 inch i7 4 gigs for windows 7 64 bits i tried downloading with bootcamp butt it never completes allways ends up with an error please help

i need the drivers for earl 2011 macbook pro 13 inch i7 4 gigs for windows 7 64 bits i tried downloading with bootcamp butt it never completes allways ends up with an error please help if any one has the drivers or knows were i can download them

Doug...
If you don't have it for reference, the manual might come in handy > US/Boot_Camp_Install-Setup.pdf
After it loads, Command + F to find information regarding the drivers.

2011 macbook pro with Mavericks - do I need install disks to erase hd?

So I inherited my dad's 2011 macbook pro and updated to Mavericks, and added myself as a user on the computer. I want to erase the HD so that I can start over, be the only user, 'own' the computer, etc., but when I open disk utility the erase buttons are grey. I also don't want to erase the HD and find out that I need to order 2011 era OSX install disks. What's the deal? Thanks!

You can't use Disk Utility from the drive that you want to erase. Depending on whether you have an early or late 2011 machine, it may have shipped with Snow Leopard, and with discs, or with Lion, and no discs.
Go under the Apple menu and select "About This Mac", "More Information," and see if it's an early or late model. If it's a late model you can do what you wish with no discs, using only Internet Recovery.
Call back,
Clinton
MacBook Pro (15-inch Late 2011), OS Mavericks 10.9.4, 16GB RAM, 960GB SSD, 27” Apple Thunderbolt Display

Tried to erase OS X Yosemite on 2011 Macbook Pro, can't reinstall any OS

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