HT5444 it says when i try to download mountain lion that The product distribution file could not be verified. It may be damaged or was not signed. so what do i do
The product distribution file could not be verified. It may be damaged or was not signed.
This should also work for Mountain Lion.
Mavericks Download can’t be verified
Similar Messages
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Mountain Lion will not download to my iMac, "The product distribution file could not be verified. It may be damaged or was not signed."
I have this problem also. I was able to download Mountain Lion to my daughter's Mac Mini without any trouble. However, I can't download this to my MacBook Pro. I have read other sites that suggest VirusBarrier is the problem and recommend turning it off in VirusBarrier>Preferences>Advanced. I have tried this and it still doesn't work, although some report that it has worked for them.
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I have a 2011 macbook pro 13 inch. when I try to download mavericks I get a message saying the product distribution file could not be verified. It may be damaged or missing. Please help.
Mavericks installer can’t be verified
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I try to download the OS X Mountain Lion, and I keep getting an error saying, "The product distribution file could not be verified. It may be damaged or was not signed." Please Help!
If you have Intego VirusBarrier X6 installed
1. Open /Applications/VirusBarrier X6.
2. Click on the "Surf" button.
3. Click on the "Ad Banner Filter" tab.
4. Click "OFF" next to "Banner advertisement filter".
5. Start the computer in Safe Boot, then restart the computer into normal mode.
If don't not have Intego Virus Barrier installed
1. Verify that the date and time is correct on the computer.
2. Safe Boot once, then restart normally, then try downloading again.
3. Try with a different user account if the issue persists
If the issue persists
Install Lion onto an empty partition (internal or external).
Note: You can Use Disk Utility to live partition the internal drive and create a second partition large enough to install Lion.
Start from the clean installation of Lion.
Download Mountain Lion from the Mac App Store. Note that the original startup disk can be set as the destination for Mountain Lion during the installation process. -
Can someone help out. I'm getting this message when i try to download. The product distribution file could not be verified. It may be damaged or was not signed.
See this link from another similar question. It may need patience to resolve. I think Thomas Reed's suggestion is best place to start.
App Store rejects buy of Mountain Lion: Apple Support Communities -
I have 10.7.5 When I try installing Mavericks, it says this: The product distribution file could not be verified. It may be damaged or was not signed. WHY?
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I tried to re-download Mavericks after an apparent failed attempt and now I get the message "We could not complete your purchase. The product distribution file could not be verified. It may be damaged or was not signed."
Can anybody help?Several causes for this problem have been reported. Please take each of the following steps that you haven't already tried. Stop when it's resolved.
Step 1
Back up all data.
From the menu bar, select
▹ System Preferences... ▹ Network
If the preference pane is locked, click the lock icon in the lower left corner and enter your password to unlock it. Then click the Advanced button and select the Proxies tab. If any proxy options are selected, make a note of them and then deselect them. You don’t need to change the bypass or FTP settings. Click OK and then Apply. Test. The result may be that you can't connect to any web server. Restore the previous settings if that happens.
Step 2
Rebuild the Spotlight index. If you try to search now from the magnifying-glass icon in the top right corner of the display, there will be an indication that indexing is in progress.
Step 3
Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you boot, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the boot volume is a Fusion Drive or a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to boot and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal boot may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, reboot as usual (not in safe mode) and verify that you still have the problem. Post the results of the test. -
Mountain Lion cannot download, need help. Says "The product distribution file could not be identified it may be damaged or was not signed". What do I do?????
If you have Intego VirusBarrier X6 installed
1. Open /Applications/VirusBarrier X6.
2. Click on the "Surf" button.
3. Click on the "Ad Banner Filter" tab.
4. Click "OFF" next to "Banner advertisement filter".
5. Start the computer in Safe Boot, then restart the computer into normal mode.
If don't not have Intego Virus Barrier installed
1. Verify that the date and time is correct on the computer.
2. Safe Boot once, then restart normally, then try downloading again.
3. Try with a different user account if the issue persists
If the issue persists
Install Lion onto an empty partition (internal or external).
Note: You can Use Disk Utility to live partition the internal drive and create a second partition large enough to install Lion.
Start from the clean installation of Lion.
Download Mountain Lion from the Mac App Store. Note that the original startup disk can be set as the destination for Mountain Lion during the installation process. -
When I click on free upgrade to Mavericks it says 'we could not complete your purchase, The product distribution file could not be verified. It may be damaged or was not signed.' What should I do? Thanks
Several causes for this problem have been reported. Please take each of the following steps that you haven't already tried. Stop when it's resolved.
Step 1
If possible, test on another network, such as a public hotspot (if the computer is portable) or the hotspot created by a mobile device. A network gateway that blocks some traffic, most likely on a company or university network, could be causing the error.
Step 2
Back up all data.
From the menu bar, select
▹ System Preferences... ▹ Network
If the preference pane is locked, click the lock icon in the lower left corner and enter your password to unlock it. Then click the Advanced button and select the Proxies tab. If any proxy options are selected, make a note of them and then deselect them. You don’t need to change the bypass or FTP settings. Click OK and then Apply. Test. The result may be that you can't connect to any web server. Restore the previous settings if that happens.
Step 3
Rebuild the Spotlight index. If you try to search now from the magnifying-glass icon in the top right corner of the display, there will be an indication that indexing is in progress.
Step 4
Start up in safe mode and log in to the account with the problem. You must hold down the shift key twice: once when you turn on the computer, and again when you log in.
Note: If FileVault is enabled, or if a firmware password is set, or if the startup volume is a software RAID, you can’t do this. Ask for further instructions.
Safe mode is much slower to start and run than normal, with limited graphics performance, and some things won’t work at all, including sound output and Wi-Fi on certain models. The next normal startup may also be somewhat slow.
The login screen appears even if you usually login automatically. You must know your login password in order to log in. If you’ve forgotten the password, you will need to reset it before you begin.
Test while in safe mode. Same problem?
After testing, restart as usual (not in safe mode) and verify that you still have the problem. Post the results of the test. -
My mountain lion was interrupted during download it says..... "The product distribution file could not be verified. It may be damaged or was not signed." what to do pls help
If you have more than one user account, these instructions must be carried out as an administrator.
Launch the Console application in any of the following ways:
☞ Enter the first few letters of its name into a Spotlight search. Select it in the results (it should be at the top.)
☞ In the Finder, select Go ▹ Utilities from the menu bar, or press the key combination shift-command-U. The application is in the folder that opens.
☞ Open LaunchPad. Click Utilities, then Console in the icon grid.
Select "/var/log/install.log" from the file list. Post the messages from the last installation or update attempt, starting from the time when you initiated it. If you're not sure when that was, start over and note the time.
Post the log text, please, not a screenshot. If there are runs of repeated messages, post only one example of each. Don’t post many repetitions of the same message.
When posting a log extract, be selective. Don't post more than is requested.
Please do not indiscriminately dump thousands of lines from the log into a message.
Important: Some private information, such as your name, may appear in the log. Edit it out by search-and-replace in a text editor before posting. -
Hi:all
I can't download an app or update ,It says ( the product distribution file could not be verified) in App Store
,and in iTunes says An unknown error occurred (-50) ?
Help Please.See this link from another similar question. It may need patience to resolve. I think Thomas Reed's suggestion is best place to start.
App Store rejects buy of Mountain Lion: Apple Support Communities -
I cannot download OS X Mountain Lion, I get an error message that says: "We could not complete your purchase. The product distribution file could not be verified. It may be damaged or was not signed." Why am I receiving this message?
Servers may be overloaded.
One user reported:
Deleted file com.apple.appstore in /var/folders/, dissabled VirusBarrier X6: problem solved! -
When I try to purchase Mountain Lion i get an error message: "We could not complete your purchase. The product distribution file could not be verified. It may be damaged or was not signed."
I can purchase other apps, why not Mountain Lion. I get the same message on my wife's IMAC.The only thing that worked for me was to boot in safe mode.
Power down. Then press power button and hold 'shift' key until grey screen with progress bar appears... Once booted and logged in just open safari and browse to applestore.
No trouble at all once I did this.
Hope it helps. -
I'm trying to download the new MacOS. I keep getting a dialog that says: "We could not complete your purchase" and then " The product distribution file could not be verified. It may be damaged or was not signed." any ideas?
I went to Purchases and it worked from there having had the same problem you describe.
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when trying to download Mountain Lion after click on buy I get this message: The product distribution file could not be verified. It may be damaged or was not signed.
The Apple Support Communities are an international user to user technical support forum. As a man from Mexico my first language is Spanish. I do not speak English, however I do write in English with the aid of the Mac OS X spelling and grammar checks. I also live in a culture perhaps very very different from your own. When offering advice in the ASC, my comments are not meant to be anything more than helpful and certainly not to be taken as insults.
Always search the forum before posting. This is asked at least three times just below your post.
https://discussions.apple.com/thread/3604789?tstart=0
https://discussions.apple.com/thread/4153268?tstart=0
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