Still, some of the users find it difficult to download Fortnite on PC. To help them out, here we are going show a step-by-step guide on how to download and install Fortnite on PC including Windows & Mac. Good Afternoon, I am having trouble installing Acrobat Reader on my MacBook. I'm trying to install Reader XI and keep getting the following error. Factory installation disc for 15-inch MacBook Pro.Mac OS version 10.6.7Disc version 1.02Z691-6812-A. MacBook Pro Install DVD. Scanner Internet Archive HTML5.

Recently (since a business trip) my MacBook Pro running OS X Snow Leopard has been refusing to install software.

For example, when I try to install Unity3D I get this error:

And when I try to install SourceTree I get this error:

These errors occur as they are described above every time I have tried to install them (~10x each).

I am also experiencing incredible slowdowns (10-20x longer) on login (as of the trip - both problems began occurring at the same time).

I have run the Disk Utility and it suggested I repair my drive, which I have done. Now running the disk utility verification reports no problems for either the drive itself or the permissions.

Is there anything else that could be causing this? Is there any more information I could provide?

1 Answer

Here are some possible explanations. I've listed them starting from the simplest to check.

Hard Drive writable

Make sure you aren't accidentally trying to install either program to an external drive, or any other file mount. I'll admit that I have mistakenly done this once.

Bad Download

Double check that your download arrived intact.

On the atlassian support page, an employee offers this suggestion to someone with the same error as youhttps://answers.atlassian.com/questions/75901/installation-error

I downloaded SourceTree 1.6.2.2 and successfully installed it. Compare your hash to mine.

Mac 10.6 Bug

There is a bug in Mac OS X called the dot_clean bug. Take a look at this website for how to fix it. To avoid it, don't save the file to any DOS formatted drives.

Corrupted User

Try creating a new user account, and see if they can install it.

How To Install Failed Updates

3rd Party Filesystem drivers

Make sure you aren't using any file system drivers like fuse.

Archive And Install Failed Mac Download

Bad Hard Drive

Take a look at your root directory, if you see a folder named 'DamagedFiles' it could be a sign that your hard drive is failing.

Scan for bad sectors with a program like Drive Genius or TechTool Pro

Run a hardware diagnostic

Take your laptop to a service provider. They will be able to perform a Netboot which will be able to further diagnose any other hardware issues.

If all else fails, backup to time machine and perform a fresh install. When you restore from Time Machine, all your information will be restored exactly how it was before.

If you happen to have a blank external hard drive, install a fresh copy of Mac OSX to that drive, then hold the c during boot to choose which hard drive to boot from. See if the programs have the same install issues on the fresh OS.

Personal Thoughts

I've been repairing PC's and Mac's for 15 years. Because you are seeing significant slowdowns as-well, my gut tells me that it is likely a combination of hard drive failure, and file corruption.

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