When I try to open firefox I get the error message "A copy of Firefox is already open. Only one copy of Firefox can be open at a time," I don't have any firefox things running.

I had the problem of firefox just not starting at all before, so I deleted my profile. Now I just get the message "A copy of Firefox is already open. Only one copy of Firefox can be open at a time." But I checked my activity monitor and there are no processes operating under firefox, what do I do?

See http://kb.mozillazine.org/Profile_in_use

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HT201514 When I try to back up ,I get the error message:The backup disk image "/Volumes/Data/ iMac.sparsebundle" could not be accessed (error -1).

When I try to backup I get the error message.The backup disk image"/Volumes/Data/iMac.sparsebundle" could not be accessed(error-1) Any Ideas? it was working fine and i can't think of any changes I made to the system to affect this?

Start with the best resource available..... Time Machine --- Troubleshooting from Pondini, the wizard of all things Time Machine.
" . . . sparse bundle could not be accessed (error -1)"

Em uninstalled "start up faster" addon im on firefox version 4 and yet when i try to install again i get the error message create service failed , can anyone tell me how to resolve this , i would like to make sure i get this addon back

im on firefox 4 ,recently ,i tried new addon for firefox 4 called start up faster, i removed it, just as comparison to see boot up times , and then when i tried to install again i get the message create service failed, the icon stays on my desktop, want to check this addon is still performing its role, or could i fix something to make sure its properly on my addon list, thank you,

Is it still showing up in your ad-on manager?

When I try to download itunes I get the error message "ITunes.Setup_exe file could not be downloaded Please help

I had ITunes installed up n running last November. Few weeks ago I started getting error messages and said to reinstall ITunes to fix the problem. So I went to control panel and deleted all Apple related programs, quick time n Itunes and reinstalled them But I cannot down load Itunes I get another error message saying ITunes.Setup_exe. This file couldn't be downloaded. I have been trying for weeks now and I am desperated Please help me

See Troubleshooting issues with iTunes for Windows updates.
tt2

When I try to download CC I get the error message A12E4.

I had no problem downloading and working with the trial apps but it seems that as soon as I subscibed I ran into trouble. When I subscribed I tried to install Lr but I kept receiving notification to update Creative Cloud, when I tried to do so I received the error A12E4. I figured that maybe if I uninstall CC that I might be able to download the updated version but I kept receiving the same error message.
I have spent several hours in 'chat' with Adobe Support using the cleaner, renaming folders, trying safe mode, all to no avail. The last person I spoke with had me package up a whole bunch of data assuring me someone would be in touch but that was 5 days ago. I am loathe to uninstall AiCC, PsCC, and IdCC as I need them for work and though I keep receiving warnings that they are damaged they seem to be working ok.
I work on a Mac.

Just in case anyone else encounters this issue, Adobe sent me the info below, and it worked for me...
1. You can see a magnifier icon on the top right corner. Please click on that and type Activity Monitor.
Please check if there is process running related to Adobe like CEP Service Manager, CEF Helper, Creative Cloud and AAM, CoreSync. If so please click on the names of those process and end all those　processes.
2. Please click on Finder and then navigate to Go - Go To Folder and type ~/Library.
After that navigate to Application Support/ Adobe and check for a folder called OOBE.
You will be able to see a file called opm.db. Please delete that file from the OOBE folder.
3. Then you can enable the Root User account in your Mac computer. Below steps are the steps to enable the root user on MAC.
From the Apple menu choose System Preferences....
From the View menu choose Users & Groups.
Click the lock　and authenticate as an administrator account.
Click Login Options....
Click the "Edit..." or "Join..." button at the bottom right.
Click the "Open Directory Utility..." button.
Click the lock in the Directory Utility window.
Enter an administrator account name and password, then click OK.
Choose Enable Root User from the Edit menu.
Enter the root password you wish to use in both the Password and Verify fields, then click OK.
You can also refer the below document on how to enable the 'Root user' on MAC.
http://support.apple.com/kb/ht1528
Then login to Root User account and try the installation of the Creative Cloud Application.

TS1717 I am on Windows 7. Yesterday I ran an update on iTunes, today when I try to launch iTunes I get the following message: This copy of iTunes is corrupted or not installed correctly. Please re-install iTunes. I am worried that I have now lost my music

I am on Windows 7. Yesterday I ran an iTunes update and today I receive this message when I try to launch iTunes: This copy of iTunes is corrupted and not installed correctly. Please re-install iTunes. I am woried that I have already lost my music and don't want to re-install.

I found this on another discussion board and it really helped, I didn't have to uninstall anything and didn't lose any music
Restart the PC. If you're using Vista or 7, now head into your Uninstall a program control panel, select "iTunes" and then click "Repair".

When I try to install Itunes I get the error message r6034

after I installed the newest update for windows itunes an error message of r6034 came up

Sorry to hear that
Hopefully this article will assist you:
≈≈≈≈≈≈≈≈
http://support.apple.com/kb/TS5376
≈≈≈≈≈≈≈≈
Please do reply with results/questions.

I just tried updating to iTunes 10.7 on my pc and when I try to launch it I get this error message-The procedure entry point AVCFPlayerSetDirect3DDevice could not be located in the dynamic library AVFoundationCF.dll. Any Ideas?

I just tried updating to iTunes 10.7 and when I try to launch it I get this error message-The procedure entry point AVCFPlayerSetDirect3DDevice could not be located in the dynamic library AVFoundationCF.dll. Them it tells me to re-install iTunes and the same thing happens again. Any Ideas?

Taken at face value, you're having trouble with an Apple Application Support program file there. (Apple Application Support is where single copies of program files used by multiple different Apple programs are kept.)
Let's try something relatively simple first. Restart the PC. If you're using Vista or 7, now head into your Uninstall a program control panel, select "Apple Application Support" and then click "Repair". If you're using XP, head into your Add or Remove Programs control panel, select "Apple Application Support", click "Change" and then click "Repair".
If no joy after that, try the more rigorous uninstall/reinstall procedure from the following post. (If you've got XP, although the procedure is for Vista and 7, just read "Computer" as "My Computer", read "Uninstall a program control panel" as "Add or Remove programs control panel" and assume the system is 32-bit, and you'll be doing the right things.)
Re: I recently updated to vista service pack 2 and I updated to itunes 10.2.1 and ever

I can't upload Iphone 5 video or send it in an email. It will play in iTunes but just gives a black screen when I try o email. I get an error message when I try to upload. Any Ideas?? I've already reinstalled OS X

It will play in iTunes but just gives a black screen when I try o email. I get an error message when I try to upload. Any Ideas?? I've already reinstalled OS X

Not sure if this Term is Relevant towards an iPhone but, my iPhone won't Post unless if it's plugged into a Charger.

When I try to install itunes I get an error message that says "Canot access internet conection \." Can someone please tell me what's wrong? My internet connection is working.

When I try to install itunes I get an error message that says "Cannot access internet connection \." Can someone please tell what this means?
My internet connection is working.

Okay. We'll try a different utility.
(1) Download the Windows Installer CleanUp utility installer file (msicuu2.exe) from the following Major Geeks page (use one of the links under the "DOWNLOAD LOCATIONS" thingy on the Major Geeks page):
http://majorgeeks.com/download.php?det=4459
(2) Doubleclick the msicuu2.exe file and follow the prompts to install the Windows Installer CleanUp utility. (If you're on a Windows Vista or Windows 7 system and you get a Code 800A0046 error message when doubleclicking the msicuu2.exe file, try instead right-clicking on the msicuu2.exe file and selecting "Run as administrator".)
(3) In your Start menu click All Programs and then click Windows Install Clean Up. The Windows Installer CleanUp utility window appears, listing software that is currently installed on your computer.
(4) In the list of programs that appears in CleanUp, select any iTunes entries and click "Remove", as per the following screenshot:
(5) Quit out of CleanUp, restart the PC and try another iTunes install. Does it go through properly this time?

HT1926 I am trying to update my iTunes so I can sync my new iphone 5s and it doesn't recognize the phone, apple support said I need to update my iTunes when I try and do that I get an error message that says " the ITunes update server could not be contact

I am trying to update my iTunes so I can sync my new iphone 5s and it doesn't recognize the phone, apple support said I need to update my iTunes when I try and do that I get an error message that says " the ITunes update server could not be contacted. Please check your internet connection or try back later.
My internet works fine and I have tried back dozens of times with same result.

Did you ever figure out the problem? "Contact Software Manufacturer"?? That sounds ominous... I've got the same issue and I'm pretty durn aggravated right about now....
Thanks!

When i try to download Xcode i get the error that it cannot be installed on "macintosh hd"

when i try to download xcode i get the error that it cannot be installed because of "macintosh hd" and me not having os x version 10.8.4!!!
please help me

Correct.
System requirements for XCode is 10.8.4 and above. Since you have 10.7.5 it can't be installed.

Sometimes when I'm trying to download an app from the app store when it is trying to load I get the error message cannot connect to iTunes store. I am on the internet. Any ideas?

Sometimes when I'm trying to download an app from the app store when it is trying to load I get the error message cannot connect to iTunes store. I am on the internet. Any ideas?

I have the same issue. How did you solve it?

When I try to update LR I get an error message Application not found

When I try to update LR I get an error message "Application not found".
When I try Help in LR it can't be found.
What is wrong?

Talked with Adobe support. Told me to go to Cloud app and log out, then log
in again and then update. Worked fine for me. Hope this helps!
Best regards,
Fredrik Moell
Tomatis New Zealand
www.tomatis.co.nz
A division of Your Amazing Health Ltd
54 Fancourt Street, Meadowbank, Auckland 1072
0800-TOMATIS (866 2847)
Personal 021-1721 930

When i try to order prints i get an error message saying there is a problem with my network and my network is working

when i try to order prints i get an error message saying there is a problem with my network and my network is working. How can i solve this problem?

Try a different media. I have good luck using Maxell discs.

HT204003 when I try to launch passbook I get an error message cannot connect to itunes store

When I try to launch Passbook, I get an error message "Cannot connect to iTunes Store"

I get the same error message when I try to launch Passbook. I know my wireless connection is working because I can access the iTunes Store via the Music application as well as the App Store.

When I try to open firefox I get the error message "A copy of Firefox is already open. Only one copy of Firefox can be open at a time," I don't have any firefox things running.

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