I encountered an installation error

I tried to install the adobe reader XI (11.0.04) abd tge installation failed. The notice I get is that Installer encountered an error that caused the installation to fail and asks me to contact the software manufacturer for assistance. I also cnat open PDF with Adobe Reader. If I click on PDF I only see a blank screen

You can try using this tool to first remove all traces of Reader from your computer:
http://labs.adobe.com/downloads/acrobatcleaner.html
Then, you can download the full offline Reader installer from
http://get.adobe.com/reader/enterprise/
After downloading, restart your computer and run the installer before doing anything else.

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Unable to update itunes. help. error message when trying to update to latest version of itunes. "the installer has encountered an unexpected error installing this package. this may indicate a problem with this package. error code 2721"

unable to update itunes. help. error message when trying to update to latest version of itunes. "the installer has encountered an unexpected error installing this package. this may indicate a problem with this package. error code 2721"

Hello chae84swangin,
I recommend following the steps in the article below when getting an error message trying to install iTunes:
Trouble installing iTunes or QuickTime for Windows
http://support.apple.com/kb/HT1926
Thank you for using Apple Support Communities.
Best,
Sheila M.

I tried updating iTunes to version 11.1.1, but installation fails each time even when I did it manually as was suggested. The message I receive is: "The installer has encountered an unexpected error installing this package. This may indicate a problem"

I tried updating iTunes to version 11.1.1, but installation fails each time even when I did it manually as was suggested. The message I receive is: "The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2324."

Hi hongkongpom,
Just wanted to say that after posting the problem, I had a chat with an iTunes' Tech Support, her name is Rebekah. My problem was resolved after that. Will list the chat history below in hopes that it may help you as well.
Good luck!
Samia
Chat Transcript
Friday, October 4, 2013 05:55 AM
Duration: 81 minutes 28 seconds
Rebekah:
Welcome to AppleCare chat support. Please give me a moment to look over your information.
Rebekah:
Hi, Samia! My name is Rebekah. If we get disconnected, please chat us back. http://www.apple.com/support/ipod/contactEnter the case number from the initial email we sent you. This gives the next advisor you chat with immediate access to your case history.
Rebekah:
Could you please confirm your serial number? I want to be sure we provide the best service possible for you, Samia!
SAMIA:
Sure, it's 8L8395UY2C5
SAMIA:
My problem is with iTunes.
Rebekah:
Thanks for that confirmation. Just a heads up, this is iOS Tech Support. We do support iPod touches, iPads, and iPhones, but not the iPod classic. But no worries! I can get you in touch with a phone Advisor who can get you in touch with the department that specializes in iPod classics and would be able to better assist you. Would that be OK?
SAMIA:
I wasn't able to install the new version of iTunes (version 11.1.1). The installation keeps failing. The they suggested the I install it manually and that failed too. I will attach the message I received.
SAMIA:
I don't have a problem with iPod.
SAMIA:
Just iTunes
Rebekah:
No problem! We can certainly troubleshoot iTunes as much as possible. It may come to the point that you may have to transferred, but we can do as much as possible during this chat!
Rebekah:
Thanks for the screenshot. It is a bit small so I am unable to fully see the message that you are receiving. What is the error message you are receiving?
SAMIA:
This is the message I received in case you weren't able to open the attachment: "The installer has encountered an unexpected error installing this package. This may indicate a problem with this package. The error code is 2324."
Rebekah:
Thanks for that info!
SAMIA:
Pleasure!
Rebekah:
What version of Windows (XP, Vista, 7) do you have?
SAMIA:
Windows 7
SAMIA:
Windows 7 Home Premium
Rebekah:
Thanks for that confirmation. I do apologize for the delay, Samia. I am researching this error code now. You mentioned trying to install iTunes manually. To be sure I am on the same page, what steps did you take to do that?
SAMIA:
Well when the indsatalltion failed I was given instructions to select Download Only from Tools and then install manually. When I did it, I window popped up with the following items: - AppleApplicationSupport
SAMIA:
- AppleMobileDeviceSupport64
SAMIA:
- Bonjour64
SAMIA:
iTunes64
SAMIA:
SetupAdmin
SAMIA:
I selected Repair in all of them instead of Remove and all worked but iTunes64
SAMIA:
That's when I received the message that I sent you earlier.
SAMIA:
By the way, this is the fir st time something like this occured. I never had problems with installation before.
Rebekah:
I completely understand what you're saying. Since that Repair did not resolve the issue, our best option is to uninstall iTunes and its components and redownload it. To do this, we will follow the steps in this article: Removing and reinstalling iTunes and other software components for Windows Vista, Windows 7, or Windows 8
Rebekah:
First, we will want to quit iTunes and/or Apple Software Update if those are open at this time.
SAMIA:
Rebekah, the instructions you gave says, "For Windows XP, follow these steps to remove and reinstall iTunes and other software components for Windows XP."
SAMIA:
I closed all applications
SAMIA:
Also, my iTunes doesn't open anymore after the new failed installation.
Rebekah:
The section that says "For Windows XP…" is in case we opened up the wrong article, as we have the one for Windows Vista, 7, or 8. There is a link to click ("these steps") in those directions that would take us to the article for uninstalling on a Windows XP.
Rebekah:
So no worries! We have the right article!
Rebekah:
On the computer, we will want to click on Start > Control Panel. In Control Panel, we will click the "Uninstall a program" link.
SAMIA:
I thought so after doing a little exploration.
SAMIA:
done
Rebekah:
Alright, we'll want to select iTunes from the list of currently installed programs. Then we will click Uninstall. When asked if you would like to remove iTunes, let's click Yes.
Rebekah:
After the uninstallation is complete, we don't want to restart your computer if you're prompted.
SAMIA:
Done
Rebekah:
Then if you see other iTunes entries on the list, we'll want to remove them the same way.
Rebekah:
Then we will remove all instances of Apple Software Update the same way you removed iTunes.
SAMIA:
Okay, but do I have to remoce iCloud as well?
SAMIA:
Rebekah, I received the same error message again when uninstalling
Rebekah:
We actually do not need to remove iCloud. After the Apple Software Update, we will want to remove all instances of Apple Mobile Device Support
Rebekah:
How strange! Are you able to click past that and allow the process to continue or has it stopped it completely?
SAMIA:
I am unable to uninstall iTunes either
SAMIA:
Stopped completely
SAMIA:
I treied clicking Repair
Rebekah:
Alright, after trying the Repair option, let's see if it will allow us to continue uninstalling or not.
SAMIA:
I tried that but unfortunately, it isn't working. I still get that same message with error code 2324.
Rebekah:
This error code is not something that I am finding in my sources, Samia. So there is a chance that it is being caused with the Windows computer itself. However, I did find a link that may be able to help with uninstalling iTunes from Windows' support site: http://support.microsoft.com/mats/Program_Install_and_Uninstall
SAMIA:
Rebekah, you're a genius! It worked! iTunes is no longer there. What next?
Rebekah:
Awesome! I'm glad that worked!
Rebekah:
To be sure I am on the same page, what was the last component we uninstalled?
SAMIA:
iTunes
SAMIA:
Shall I remove the Apple Application Support, Apple Mobile Device Support, and Apple Software Update
Rebekah:
That is correct! However, we do want to uninstall it in the order I mentioned above. So Apple Software Update first, Apple Mobile Device Support next, and then Apple Mobile Device Support.
SAMIA:
Got it, but is the second one to uninstall Apple Mobile Device Support OR Apple pplication Support?
Rebekah:
The second one is Apple Mobile Device Support.
Rebekah:
The Application Support will be the last component we uninstall.
SAMIA:
Thanks! I'm on it.
SAMIA:
Done! ll 3 are gone, well 4 with iTunes. Now what?
Rebekah:
Awesome! Also, I just noticed that I accidentally typed Apple Mobile Device Support twice, I do apologize for any confusion! Now we will remove all instances of Bonjour and then remove all instances of Apple Application Support.
SAMIA:
There was only 1 instance with Bonjour. I don't know what the instances are for Apple Application Support
Rebekah:
Yes, Bonjour is often only listed once. Is the Apple Application Support listed at all?
SAMIA:
No
SAMIA:
Since I removed it
Rebekah:
Oh, perfect! If it was removed, we should be set!
Rebekah:
We have removed iTunes and its components now! From here, our next step is to restart the computer. Then once you reboot, you can redownload iTunes from apple.com/itunes
Rebekah:
That should allow you to download iTunes!
SAMIA:
Shall I downloaad the latest vesion?
Rebekah:
You will want to first restart the computer as shown in the article. That will ensure that this process goes smoothly and that everything was removed correctly! Then you can try downloading iTunes again.
SAMIA:
Okay, thanks Rebekah!
Rebekah:
You're very welcome! I'm glad I could help! And of course if you have any issue after the reboot and download, you can always chat us back, as chat is open 24 hours! You will just need to give your case number and the next Advisor would have all my notes!
SAMIA:
Thanks again for all your help, for I couldn't have managed with out it. Have a nice day!
Rebekah:
You're very welcome! I know how important iTunes is and I'm glad we could get you on a path to resolution!
Rebekah:
I hope you have a lovely day!
Rebekah:
It's been a pleasure speaking with you! Thanks for chatting with us Samia. If you don't have any more questions, select End Chat from the upper left corner of the chat window.
SAMIA:
Will do, thanks.

I can't install itunes. I get an error code 2894 with a message stating that the installer has encountered an unexpected error. Anyone know what I need to do?

I can't install itunes. I get an error code 2894 & a message that states the installer has encountered an unexpected error installing this package. Anyone know what I need to do to fix this?

Are you able to uninstall iTunes and QuickTime?
You might have to search for the Windows Installer Cleanup Utility, which would allow you to remove some applications that you can't from Control Panel.
Also, take a look at this Apple document -> Trouble installing iTunes or QuickTime for Windows.

The device has encountered an unexpected error. Installation error: application verification failed

the device has encountered an unexpected error. Installation error: application verification failed
I have been receiving this message over and over again when trying to publish my iOS app for the app store (I use Flash cc AIR 3.9.1.1080 for iOS and my settings are: "device testing in interpreter mode", as my app uses several swfs).
I have done everything from scratch, as recommended on other sections of the forums: new app ID from my apple developer account, new Distribution Certificates, new Distribution Provisioning Profiles and nothing works.
I can install my app on my iPad if I use the development Certificate and Provisioning Profile and everything seems OK. But as soon as I use the Distribution Certificate and Provisioning Profile get the same message:
the device has encountered an unexpected error. Installation error: application verification failed
I have done everything from the beggining over and over and nothing works. Am I the only one having this issue on Flash cc???

Hi Daniel:
I´m far from being an expert on Xcode (or any code) but this is what I did and it worked:
- On Xcode go to Preferences > Accounts > select your App Developer Account, then click "view details" on the lower right corner.
- There you can see which of your "Signing Identities" (Certificates) are "Valid". You should have at least one for Development and one for Distribution.
- Below that window there are two icons which you can use to add, export or revoke a "Signing Identitie" (Certificate).
- Choose the one you want to use (Develop. or Distrib.), export it to the folder of the app you are working on and name it in such a way you can relate it to your app. Before knowing this I was exporting them using Keychain Access and I wasn´t naming them to differentiate each one properly.
- On your Apple Developer account create the Provisioning Profile for your app. I deleted any App IDs or Prov. Profs. which were useless.
- Then on my Apple Developer account I generated a Development Prov. Prof. to install and test my app on my iPad. All went fine.
- Then an Ad Hoc Prov. Prof. again to install and test my app on my iPad. All went fine.
- Then I generated the App Store Prov. Prof. and I was able to install the app on my device without the upsetting error.
- Then I uploaded the app to iTunes Connect with no problem.
These link was useful for me: https://developer.apple.com/library/ios/technotes/tn2318/_index.html#//apple_ref/doc/uid/D TS40013777-CH1-TNTAG0
You can also search for "Certificates" and "Provisioning" on Xcode help.
Good luck!

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No, there was no option for enter the serial number, which i gather u mean by S/N?

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