Mac Os X Cant Be Installed On This Computer

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Serafin Sonnier

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Aug 3, 2024, 11:17:45 AM8/3/24

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I want to play some older games on my MacBook Pro Mid 2009 (i.e. StarCraft, WarCraft III) and these games will not work in the current version of OS X (Yosemite). Through all the research I've done, these games should work in Snow Leopard. Now, from my understanding, the original OS that came with this MacBook Pro was Leopard (10.5.x), so I shouldn't have a problem installing 10.6.3 on a separate partition, right?

So I've put the installer image on a 16GB SD Card (formatted as MacOS Extended, Journaled, using GUID partition map) and was able to boot to the installer. I get to the "Choose a language" screen and choose English... Goes to the screen "Preparing for installation" then says "Mac OS X Cannot be installed on this computer"

The installer sees your current Yosemite volume. You need to set the destination for Snow Leopard to the partition on which you will install Snow Leopard. If you don't have a new partition on the drive for Snow Leopard, then you will need to create one before you can do any installation.

2. Click on the Partition tab in the DU main window. You should see the graphical sizing window showing the existing partitions. A portion may appear as a blue rectangle representing the used space on a partition.

3. In the lower right corner of the sizing rectangle for each partition is a resizing gadget. Select it with the mouse and move the bottom of the rectangle upwards until you have reduced the existing partition enough to create the desired new volume's size. The space below the resized partition will appear gray. Click on the Apply button and wait until the process has completed. (Note: You can only make a partition smaller in order to create new free space.)

4. Click on the [+] button below the sizing window to add a new partition in the gray space you freed up. Give the new volume a name, if you wish, then click on the Apply button. Wait until the process has completed.

That's the thing, I'm not even getting to that point. As soon as I choose the Language, it shows that it's preparing installation, then spits out the message: Mac OS X Cannot be installed on this computer. And the only options are to Restart or Recover from a back up. The window doesn't say why it can't install, just says that it can't. Maybe it's the installer I'm using?

Here's what I find. I get to a window in which all available volumes are displayed as icons. Invalid volumes have a yellow triangular badge. That means you cannot install on that volume as-is. You also should have a screen menubar at the top with one menu labeled Utilities. Select the desired volume, then select Disk Utility from the Utilities menu. Re-format the volume on which you want to install Snow Leopard. Be sure you select the Mac OS Extended, Journaled format option. Click on the Apply button. Upon completion you should now be able to install on that volume. If you cannot, then it's because the Snow Leopard volume you have cannot be used to install Snow Leopard on the computer model you have. You can install 10.5.7 from the original discs or 10.5.8 from a retail set of Leopard or the retail version of Snow Leopard - 10.6.3.

So, based on these images you are not seeing a menubar as you should? Are you booting from a completely separate disk like a DVD or a flash drive? This will not work if you are trying to boot from that third partition you have. You need to boot from a separate drive. Otherwise, I don't see why it won't work having done this dozens of times myself. ?

I have the installer image setup on a SD Card and a small partition on an external HDD. Every avenue I take this doesn't seem to work. It's possible that the copy of the image I have doesn't work right.

Well, the images you have posted are not the same as what I saw on my computer. There is a menubar at the top of the screen. Once you click the Continue button at the bottom of the language screen, the next screen is where you would select the destination and has three buttons: Back, Options, and Continue. I don't see any of those in your second image.

The only thing that comes to mind is that the Snow Leopard disk you are using is an "Upgrade" disk, not a full installer disk. If so, then it will only upgrade an existing Leopard or Snow Leopard system.

Is the disk a gray or white disk. Gray disk is the original that came with the macbook but it has to be for your specific model macbook. Disc for another model will give you that error. The white would be a retail version that should install. Also where did you get the installer image from? The image might just be for another mac.

What really freaked me out was when it said "Mac OS Version: not yet set" (second last 2 lines) and I rebooted my mac and it showed a folder with a question mark in the middle. I took it to Apple and they said all the data is gone BUT I made a backup ? so they put the backup on the mac and all is fine.

Check if you selected the right package according to the processor build (Apple silicon / Intel) of your mac when manually downloading the package.To confirm the processor for your mac, check under 'About this Mac'.

I had the same issue. My mac has the Intel processor and I downloaded the package for Apple Silicon arm64, which is why the package would not install. I installed the Intel 64-bit package and it worked. Hope this helps!

Could be some corruption. I would do this before wasting more time trying to fix things. Wipe, install, then install Office right away, before anything else. That eliminate the chance of some other step causing the problem.

What group policies is it subject to? The way some of ours work to keep ransomware at bay also cause Office installs to fail. I basically move it out of the GPO group momentarily, reboot, or run gpupdate /force , then run the install. Upon completion I move the computer back into the appropriate GPO.

I'm Trying to install Eset on my windows 10 pc, Whenever i try to install Eset on my computer, It gives me a popup saying that other antivirus is already running on my computer.. Please help me resolve this..

It looks like you had another antivirus on your computer that is not removed properly.. try to remove it with the help of it's removal tool.. if you are still getting the problem try reinstalling and removing that antivirus with the removal tool again..

Smart move Just one more tip - if you want your computer to be protected from network attacks when vulnerabilities in network protocols are exploited, such as in the infamous WannaCry case, I'd strongly recommend to go for ESET Internet Security. ESET NOD32 Antivirus does not contain Network attack protection and therefore cannot protect from exploitation of vulnerabilities in network protocols at the network level. These attacks may come from other infected computers in a network and may exploit mentioned vulnerabilities to propagate over the network to unpatched systems.

While you are waiting for the next qualified/approved malware removal expert helper to weigh in on your topic, and even though you may have run the following Malwarebytes utility, or its subsets, please carefully follow these instructions:

For the short time between when you post the diagnostic logs, and when your helper weighs in, please take no further self-directed remedial actions that will invalidate the diagnostic logs you will have posted.

There are several separate issues going on on this machine. This will take several passes / rounds. Have much patience. There is not a single-magical-single step solution. When you get caught up, do what follows.

The Microsoft Safety Scanner is a free Microsoft stand-alone virus scanner that can be used to scan for & remove malware or potentially unwanted items from a system. This tool does not install. It is run on-demand.

Upon completion of the save, Please make sure you Exit out of any other program you might have open so that the sole task is to run the following scan.
That goes especially for web browsers, make sure all are fully exited out of and messenger programs are exited and closed as well

Once you see it has started, take a long long break; walk away. Do not pay credence if you see some intermediate early flash messages on screen display. The only things that count are the End result at the end of the run.
Again, any on-screen display about repeat 'infection' is not to be relied on. Ignore those.
We only rely on the end result that is on the log-report-file.

That DOES NOT mean the computer is infected. Once the scan has been completed it uploads the log to their Cloud service which then uses Artificial Intelligence to determine if in fact any of the traces are an infection or not.

REMARKS for Safety This machine is super-infected by some sort of multi-vectored malware. Do NOT do any banking, or shopping on this machine until after I give the all-clear. The malware has set multiple ways to stop or prevent legitimate security programs from running. It will take several days of effort to 'possibly' get this cleaned up. If you want to consider, and if you have nothing to save on this machine, it would be faster & easier to WIPE the system, and after that, to do a CLEAN NEW from scratch Windows setup.