OS X Yosemite can't install

My Macbook isn't allowing me to install the new OS X Yosemite even though I've backed up my computer, and it is compatible as it is a late 2008 model.
And when I go in to the App Store, it is giving me this notification below. Please Help, what do I do?

The Aluminum or white model?
iMac (Mid 2007 or newer)
MacBook (Late 2008 Aluminum, or Early 2009 or newer)
MacBook Pro (Mid/Late 2007 or newer)
MacBook Air (Late 2008 or newer)
Mac mini (Early 2009 or newer)
Mac Pro (Early 2008 or newer)
Xserve (Early 2009)

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Can't install OS X Yosemite

I downloaded the OS X Yosemite installation from the App Store and when I run the installer to select the install disk and it says "This disk cannot be used to startup your computer".

Problem description:
OS X Yosemite can’t install: This disk cannot be used to startup your computer
EtreCheck version: 2.1.5 (108)
Report generated 7 January 2015 9:50:59 am NZDT
Click the [Support] links for help with non-Apple products.
Click the [Details] links for more information about that line.
Click the [Adware] links for help removing adware.
Hardware Information: ℹ️
MacBook Pro (13-inch, Mid 2010) (Verified)
MacBook Pro - model: MacBookPro7,1
1 2.4 GHz Intel Core 2 Duo CPU: 2-core
4 GB RAM Upgradeable
BANK 0/DIMM0
2 GB DDR3 1067 MHz ok
BANK 1/DIMM0
2 GB DDR3 1067 MHz ok
Bluetooth: Old - Handoff/Airdrop2 not supported
Wireless: en1: 802.11 a/b/g/n
Video Information: ℹ️
NVIDIA GeForce 320M - VRAM: 256 MB
Color LCD 1280 x 800
System Software: ℹ️
OS X 10.9.5 (13F34) - Uptime: 0:11:9
Disk Information: ℹ️
ST9250315ASG disk0 : (250.06 GB)
Macintosh HD (disk0s1) / : 243.83 GB (172.37 GB free)
HL-DT-ST DVDRW GS23N
USB Information: ℹ️
Apple Internal Memory Card Reader
Apple Inc. Built-in iSight
Apple Inc. BRCM2046 Hub
Apple Inc. Bluetooth USB Host Controller
Apple Computer, Inc. IR Receiver
Apple Inc. Apple Internal Keyboard / Trackpad
Gatekeeper: ℹ️
Mac App Store and identified developers
Kernel Extensions: ℹ️
/Applications/Screenflick.app
[not loaded] com.Cycling74.driver.Soundflower (1.6.2 - SDK 10.6) [Support]
/System/Library/Extensions
[not loaded] com.ZTE.driver.ZTEUSBCDCACMData (1.2.13) [Support]
[not loaded] com.ZTE.driver.ZTEUSBMassStorageFilter (1.2.13) [Support]
[loaded] com.intel.kext.intelhaxm (1.1.1 - SDK 10.9) [Support]
Problem System Launch Daemons: ℹ️
[loaded] com.intel.haxm.plist [Support]
Launch Agents: ℹ️
[running] cn.com.zte.usbswapper.plist [Support]
[loaded] com.oracle.java.Java-Updater.plist [Support]
[loaded] org.macosforge.xquartz.startx.plist [Support]
Launch Daemons: ℹ️
[running] cn.com.zte.PPPMonitor.plist [Support]
[loaded] com.adobe.fpsaud.plist [Support]
[loaded] com.github.GitHub.GHInstallCLI.plist [Support]
[loaded] com.microsoft.office.licensing.helper.plist [Support]
[loaded] com.oracle.java.Helper-Tool.plist [Support]
[loaded] org.macosforge.xquartz.privileged_startx.plist [Support]
User Launch Agents: ℹ️
[loaded] com.google.keystone.agent.plist [Support]
[running] com.spotify.webhelper.plist [Support]
[loaded] com.valvesoftware.steamclean.plist [Support]
User Login Items: ℹ️
iTunesHelper Application (/Applications/iTunes.app/Contents/MacOS/iTunesHelper.app)
Google Drive Application (/Applications/Google Drive.app)
Internet Plug-ins: ℹ️
JavaAppletPlugin: Version: Java 8 Update 20 Check version
FlashPlayer-10.6: Version: 16.0.0.235 - SDK 10.6 [Support]
QuickTime Plugin: Version: 7.7.3
Flash Player: Version: 16.0.0.235 - SDK 10.6 [Support]
Default Browser: Version: 537 - SDK 10.9
SharePointBrowserPlugin: Version: 14.4.7 - SDK 10.6 [Support]
Unity Web Player: Version: UnityPlayer version 4.5.1f3 - SDK 10.6 [Support]
iPhotoPhotocast: Version: 7.0
3rd Party Preference Panes: ℹ️
Flash Player [Support]
Java [Support]
Time Machine: ℹ️
Time Machine not configured!
Top Processes by CPU: ℹ️
      1% mds_stores
      0% fontd
      0% AppleSpell
      0% Google Drive
      0% mds
Top Processes by Memory: ℹ️
159 MB Google Chrome
137 MB com.apple.IconServicesAgent
125 MB Skype
90 MB ocspd
82 MB mds_stores
Virtual Memory Information: ℹ️
1.43 GB Free RAM
1.55 GB Active RAM
515 MB Inactive RAM
536 MB Wired RAM
635 MB Page-ins
0 B Page-outs
Diagnostics Information: ℹ️
Jan 7, 2015, 09:45:13 AM /Library/Logs/DiagnosticReports/Spotify_2015-01-07-094513_[redacted].hang
Jan 7, 2015, 09:40:26 AM Self test - passed
Jan 6, 2015, 10:55:39 PM /Users/[redacted]/Library/Logs/DiagnosticReports/splashboardd_2015-01-06-225539 _[redacted].crash
Jan 6, 2015, 10:05:47 PM /Users/[redacted]/Library/Logs/DiagnosticReports/HelloWorld_2015-01-06-220547_[ redacted].crash
Jan 6, 2015, 08:21:00 PM /Users/[redacted]/Library/Logs/DiagnosticReports/splashboardd_2015-01-06-202100 _[redacted].crash
Jan 6, 2015, 08:20:32 PM /Users/[redacted]/Library/Logs/DiagnosticReports/splashboardd_2015-01-06-202032 _[redacted].crash
Jan 6, 2015, 08:20:29 PM /Users/[redacted]/Library/Logs/DiagnosticReports/splashboardd_2015-01-06-202029 _[redacted].crash
Jan 6, 2015, 08:17:55 PM /Users/[redacted]/Library/Logs/DiagnosticReports/HelloWorld_2015-01-06-201755_[ redacted].crash
Jan 6, 2015, 08:17:48 PM /Users/[redacted]/Library/Logs/DiagnosticReports/HelloWorld_2015-01-06-201748_[ redacted].crash
Jan 6, 2015, 07:17:08 PM /Users/[redacted]/Library/Logs/DiagnosticReports/Inky_2015-01-06-191708_[redact ed].crash
Jan 5, 2015, 06:36:44 PM /Users/[redacted]/Library/Logs/DiagnosticReports/MyPlayground_2015-01-05-183644 _[redacted].crash
Jan 5, 2015, 06:36:38 PM /Users/[redacted]/Library/Logs/DiagnosticReports/SourceKitService_2015-01-05-18 3638_[redacted].crash

I have a Macbook pro 2009 with Snow Leopard. Which system can I install without running into complicated problems which I will not be able to solveby myself? (Mountain Lion, Mavericks, Yosemite?)

I have a Macbook pro 2009 with Snow Leopard. Which system can I install without running into complicated problems which I will not be able to solve by myself- a person with limited problem solving abilities. (Mountain Lion, Mavericks, Yosemite?)

It will make it easier to help you w/ your problem to know the size and RAM installed.
"Yesterday I couldn't update the maps on my Garmin because it said the OS I had wouldn't work"
What OS will your Garmin work with? Funny there was someone else that did that and upgraded to Yosemite and regretted it.
I'd say Lion if your Garmin is compatible.
Both Lion and Mountain Lion are downloadable from the Apple Store:
http://store.apple.com/us/product/D6106Z/A/os-x-lion
http://store.apple.com/us/product/D6377Z/A/os-x-mountain-lion
The OSs will get more resource hungry the higher you go.

How can I install Adobe Flash Player on my Mac/Yosemite?

How can I install Adobe Flash Player on my Mac Pro/Yosemite?

Zoeykm wrote:
How can I install Adobe Flash Player on my Mac Pro/Yosemite?
Download the DMG installer from Adobe here and run it.

HT201364 can't install yosemite on my OS X 10.6.8 (i get a warning that it cannot be installed on this pc)

Hello
I'd like to install yosemite but it seems that i can't.
I have a 2012 mac pro with 10.6.8, 16GB RAM and enough free space but still i can't install yosemite.
any ideas?
Kind regards

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.
Mac Pro (Early 2008 or newer) model number 3,1 or higher

I can't install yosemite, got the error message, that i have to use App Store to download it

I have been reinstalling OSX, but now i can't update to yosemite or install iMovie and iphoto again. I just get the message, that I have to use app store t download the programs, but i'm already using app store, any one who knows what to do? I already have the Mavericks installed.

OS Recovery
Boot up from your computer by holding down the command+r keys. This will take you to the recovery drive.
Select Disk Utility & hit Return.
In Disk Utility select the HD on the left & click on Repair Disk (bottom right).
When done, go back to your desktop by restarting your computer. Try the AppStore again. If still not working see if Yosemite can be downloaded from Apple's Download website.

Can't install or update ARD on Yosemite

Did a clean install of Yosemite on my 2012 MBPro. I installed ARD v3.6.1 then was going to update via the App Store (like in the past). But the v3.7.2 update doesn't show up in the App Store, so I downloaded the ARD Admin 3.7.2 pkg but can't install to the HD. Error says there's already a newer version of this package installed.
Any ideas? Thanks.

Don't worry, you're not the only one:
Apple Remote Desktop update issue in Yosemite

I can't install application manager on my mac pro after upgrading to yosemite

Hello, I just upgraded my mac to yosemite and photoshop stopped working so I decided to buy it but when trying to download it I was asked to install adobe application manager 8.0. But it says there is an error and I can't install it. What can I do?

Noelopan what specific error are you receiving?

I have downloaded OS X Yosemite using recovery from boot but while installing error occuring showing unable to extract essential.pkg so can't install. problem is i have already formatted my drive and dont have any os right now. please help

i have downloaded OS X Yosemite using recovery from boot but while installing error occuring showing unable to extract essential.pkg so can't install. problem is i have already formatted my drive and dont have any os right now. only the downloaded new os x yosemite in the os x base system. please help

Please try again after taking each of the following steps that you haven't already taken.
Step 1
Reset your computer’s PRAM.
Step 2
If your model has user-replaceable memory, and you've upgraded the memory modules, reinstall the original memory and see whether there's any improvement. Be careful not to touch the gold contacts. Clean them with a mild solvent such as rubbing alcohol. Aftermarket memory must exactly match the technical specifications of the machine.
Step 3
Back up all data to at least two different storage devices, if you haven't already done so. One backup is not enough to be safe. The backups can be made with Time Machine or with Disk Utility. Preferably both.
Erase and install OS X. This operation will destroy all data on the startup volume, so you had be better be sure of the backups.
Step 4
Make a "Genius" appointment at an Apple Store, or go to another authorized service provider to have the machine tested.

Can't install Adobe flash player since updating to Yosemite

I upgraded to Yosemite from Mavericks and keep getting message that I don't have Adobe Flash player but despite several attempts to download it, message keeps appearing. Systems preferences shows that I have latest Adobe player installed

If you can't install or update Flash, follow these instructions.
If you have installed the latest version of Flash, please take each of the following steps that you haven't already tried. After each step, relaunch Safari and test. For a "missing plug-in" error, start with Step 8. Back up all data before making any changes.
Step 1
You might have to log out or restart the computer before a Flash update takes effect.
Step 2
From the Safari menu bar, select
          Safari ▹ Preferences... ▹ Privacy ▹ Remove All Website Data...
and confirm. Close the window. Then select
           ▹ System Preferences… ▹ Flash Player ▹ Advanced ▹ Delete All...
In the sheet that opens, check the box marked
          Delete All Site Data and Settings
then click Delete Data. Close the preference pane.
Step 3
If you're only having trouble with YouTube videos, log in to YouTube and load this page. You may see a link with the text "Leave the HTML5 Trial." If so, click that link.
Step 4
a. If you get a warning of a "blocked" or "outdated" plug-in, then select the Security tab in the Safari preferences window. In the list of plugins on the left, there should be one—and only one—entry for "Adobe Flash Player," showing the same version number that you installed. Select that entry. On the right there will be a list of websites for which you have specifically allowed Flash, if any. It's normal for the list to be empty. Below that is a menu labeled
          When visiting other websites
From that menu, select either Allow or Ask.
b. If you still get the alerts, then go back to the Flash Player preference pane and select the Advanced tab. Click Check Now. Quit and relaunch the browser.
c. If the alerts still persist, triple-click anywhere in the line below on this page to select it:
/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources
Right-click or control-click the highlighted text and select
          Services ▹ Open
from the contextual menu.* A folder should open. Inside it, there should be a file named "XProtect.meta.plist". If that file is missing and you know why it's missing, restore it from a backup or copy it from another Mac running the same version of OS X. Otherwise, reinstall OS X.
*If you don't see the contextual menu item, copy the selected text to the Clipboard by pressing the key combination command-C. In the Finder, select
          Go ▹ Go to Folder...
from the menu bar and paste into the box that opens by pressing command-V. You won't see what you pasted because a line break is included. Press return.
Step 5
In the Safari preferences window, select the Advanced tab and uncheck the box marked
          Stop plug-ins to save power
Step 6
Open this folder as in Step 4:
/Library/Internet Plug-Ins
Delete the following item, or anything with a similar name, if present:
          Flash Player (failing).plugin
You may be prompted for your login password.
Step 7
Re-download and reinstall Flash. Download it from the domain "get.adobe.com". Don't click a link from any other website, including this one, because you can't trust links. They may be an attempt to trick you into installing malware masquerading as Flash. Type the address into the browser window. Never download a Flash update from anywhere else.
Step 8
If you get a "missing plug-in" error, select
          Safari ▹ Preferences... ▹ Security
from the Safari menu bar and check the box marked
          Allow (or Enable) plug-ins
Then click the button marked
          Manage Website Settings...
if present and make sure that the website is not blocked for Flash.
Step 9
Select
          Safari ▹ Preferences... ▹ Extensions
from the Safari menu bar. If any extensions are installed, disable them.

Here is my problem: "To open "Adobe Photoshop CS5.1" you need to install the legacy Java SE 6 RUNTIME" after upgrading iMac to Yosemite, can anybody help?

Here is my problem: "To open "Adobe Photoshop CS5.1" you need to install the legacy Java SE 6 RUNTIME" after upgrading iMac to Yosemite, can anybody help?

This answer may be somewhat late, but just in case other have the same issues, I went to site listed below and it solved the problem. No need to reinstall CS5 product. I hope this works for you.
http://support.apple.com/kb/DL1572

Can i install photoshop cs5 on yosemite and update photoshop or buy a whole new photoshop

can i install photoshop cs5 on yosemite and update photoshop or buy a whole new photoshop

I'm very sure you can, but as long as you have your discs and serial number, give it a try.
Gene

Can't install Yosemite incompatible files, anyone know how I will get updates for creative cloud how will I get

Can't install Yosemite incompatible files, anyone know how to get passed this , so I can install Yosemite and get creative cloud adobe software updates

You should ask Apple for help installing their operating system
Yosemite sometimes has problems, often related to "default" permissions needing to be changed
-one person's solution https://forums.adobe.com/thread/1689788
-and a Java update https://forums.adobe.com/thread/1507936
-update may break things https://forums.adobe.com/thread/1772260

Can I install Illustrator CS 6 on Yosemite?

Can I install Illustrator CS6 on Apple's new Yosemite Operating System

coquette,
You should be able to, but many have had different issues.
On the other hand, this website seems to indicate that someone has made Yosemite work with almost all CS/CC versions.
http://roaringapps.com/apps?index=a
Weeding out in older plugins seems to have helped some in some cases. It also seems that JAVA Runtime may be involved.
Here is a link to a Java download that may be crucial.
http://support.apple.com/kb/DL1572
Some have found that the page may turn up blank to start with, so it may be necessary to reload the page.

I have a MacBook running OS 10.9 with 4GB of memory free. Can I install Yosemite?

I have a MacBook running OS 10.9 with 4GB of memory free. Can I install Yosemite?

Other things being equal, 4GB is enough to check your email and run Yosemite. If your Mac runs well with Mavericks it should run well with Yosemite.
You probably won't be happy with the performance of your Mac with Yosemite if you are planning on doing other things that are more demanding on your hardware, like Photoshop or editing video, or using virtualization software. Unless you like seeing the spinning beachball.
Other factors are important too, like your HD (SSD vs. conventional drive), how full your HD is, how fast your processor is, and if you have some types of "crapware" on your Mac, for example, CleanMyMac or MacKeeper, or other similar dubious "utilities". Or antivirus software. But that is a whole discussion in itself.
You can easily test drive Yosemite in one of two ways:
1. Make a backup of your current installation, like with Time Machine. Then if you don't like Yosemite you can restore from your backup.
2. Make a test partition on your hard drive and install Yosemite there.

OS X Yosemite can't install

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