Download new OS on old MacBook

I have a mid-2007 Macbook. I bought a copy of Mountain Lion and wanted to download it for use with another computer but the system will not let me. It says, "We could not complete your purchase. OS X Mountain Lion is not compatible with this computer."

I want to use it with **ANOTHER** computer! Why did it let me pay them if I couldn't download it!? Obviously, I can't download it from the other computer or I would. Is there any way to bypass the check so I can download the installer? I know that it is incompatible with my Macbook and I have no intentions of trying to install it onto it.

I paid for it, I should be able to download it from any computer I want, compatible or not!

Please help, if you can. Can it be done, or should I be looking for other sources?

Are there no other options?

@nemal: I already tried holding option; it didn't work, sadly.

@mcasan: your reply is very condescending. I know this information already. So, I don't care, it should download to the apps directory and execute just like normal and THEN tell it it's incompatible. Or it should tell me it's incompatible and ask if I still want to download the file. Heck after that it wouldn't need to execute. And, gee, why the hell haven't I tried downloading it with the other computer? Oh wait! I clearly tell you in my post that this isn't an option.

My grief with all of this is that I wanted to get the operating system the right way. So, I went to Apple, saw that they wanted $20.00 for it and gladly paid it for the operating system I needed. I went through the rigmarole of buying it and waiting nearly two days to get the email with the PDF, putting in the password from that other email just so I could get the redeem code, and then doing the redemption process. All from the selfsame Macbook, that, just as I was going to download said I couldn't. At nowhere in my trek through this idiocy did it say that I wouldn't be able to get the thing for what I paid. Only after I jumped through the hoops like a good circus tiger did they tell me there was nothing on which to land on the other side. If they had said it right up front, I wouldn't have gone through it in the first place. But once I have paid for it, I should be able to download the thing anywhere I am and for any reason; on any computer or operating system. Then, have the installer itself tell me I can't use it on that system or architecture. At least I would receive the object for which I paid. I liken it to my buying an xbox game when all I have is a PlayStation. The clerk didn't take my money for the xbox game and then stop me from taking the xbox game home with me because of the incompatibility. I still have the xbox disc, even if it is useless to me. The same should apply here.

And thanks but if I wanted the system specs for the operating systems I would have asked Google for them. And why did you feel the need to include Mavericks, as well? Again, I clearly stated this was concerning Mountain Lion. And if you were going to copy and paste the specs, which you did, why did you link to the articles? Couldn't you have just included the links? Nah, that wouldn't have been nearly as pretentious, would it?

Please, take a moment, read a post, and try to answer the questions asked. And try to not be so condescending with that reply, next time, mmkay, friend?

logana said:

I think we are wondering why you would pay for Mountain Lion rather than get Mavericks for free ?

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Yeah, that made me mad too when I found out. I got two Macs, first the little MacBook I'm using now which was a gift from a friend after he upgraded.

logana said:

Or is the "other" computer not a Mac ?

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The second is a desktop Mac all-in-one deal I bought off eBay. This is the "other" computer I was referencing although I do have a couple throwaway Dells and my main which is an Asus. I'm going to try and Hackintosh one of those later when I get a day off from work.

The Mac from eBay came with Mountain Lion on it. Since these two Macs are my first foray into the Mac world (I'm wanting to use them to code for iPhone but my little MacBook can't install xCode which requires Mountain Lion; hence the eBay Purchase), I didn't know one cost $20 and the other was free until it was too late. The desktop Mac boots to a crossed circle. The guy I got it from said simply, just reinstall Mountain Lion. This is when I went and bought it and the beginning of my current frustration with the incompatibility issue.

When my friend gave me my MacBook he told me it couldn't be upgraded any farther but he failed to mention that I couldn't even download the latest OS I paid for with it.

This stopped being about fixing the other computer some time ago. It's just frustrating.

DeltaMac said:

You COULD install Snow Leopard, or Lion on that newer Mac, then sign in to the App Store, and download Mountain Lion.

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I didn't consider this potential solution. It would be a few more hoops to jump through but it should work. I just got hung up on the not-being-able-to-get-what-I-paid-for bit that I really stopped looking for a solution. I thank you.

Does anyone know what would caused the slashed circle boot screen?

Also, I must say that I've been a Windows and Linux user my whole life but I really do like the Mac OS a heck of a lot more than I thought I would. I just wish little things like this didn't exist.