I have been using firefox on my desktop with windows xp for years with no problems and suddenly refused to open. The error message reads "unable to locate component. plc4.dll was not found." What does that mean? How do I fix it?

The error message also suggests that I unintall and reinstall firefox, I tried that but it does not fix the problem.

Which security software (firewall, anti-virus) do you have?
If you use ZoneAlarm Extreme Security then disable Virtualization and reinstall Firefox.
Other security software may have similar features to prevent Firefox from updating files properly.
See these pages for a similar issue with corrupted files:
*http://kb.mozillazine.org/Browser_will_not_start_up#XULRunner_error_after_an_update
*[[/questions/880050]]

Similar Messages

HT201210 Itunes won't launch? Message reads "Unable to locate Component - MSVCR80.d11 was not found. Do you have a solution please?

I just tried to update iTunes to version 11.1.4 on my Windows Desktop, which is normally not a problem.
However, halfway through the download, the following message pops up:-
"iTunes.exe - Unable to Locate Component. This application has failed to start because MSVCR80.dll was not found. Reinstalling the application may fix this problem"
I have uninstalled iTunes and reinstalled it, however the message is the same.
Any suggestions?

Read the threads over on the right under the heading of More Like This
Allan

HT1926 Have the same problem as many other users: tried to update iTunes on Windows 7 today; first message "unable to locate component- MSVCR80.dll was not found" then "iTunes was not installed correctly. Please reinstall iTunes - Error 7 (Windows error 1

I have the same problem as many other users: updated iTunes on Windows 7 on Jan 26, 2014 and iTunes does not open. First message "unable to locate component- MSVCR80.dll was not found" then "iTunes was not installed correctly. Please reinstall iTunes - Error 7 (Windows error 126)". When will Apple fix this? Don’t feel like uninstalling all Apple software and then re-installing it as suggested, as I am on a terribly slow internet connection while travelling in the DR Congo.

Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)
Remove all of these items in the following order:
iTunes
Apple Software Update
Apple Mobile Device Support (if this won't uninstall press on)
Bonjour
Apple Application Support
Reboot, download iTunes, then reinstall, either using an account with administrative rights, or right-clicking the downloaded installer and selecting Run as Administrator.
The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.
Please note:
Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.
HT1925: Removing and Reinstalling iTunes for Windows XP
HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8
tt2

TS3074 updated iTunes on Vista on Jan 26, 2014 and iTunes will not open. First message "unable to locate component- MSVCR80.dll was not found" then "iTunes was not installed correctly. Please reinstall iTunes - Error 7 (Windows error 126)"

I even deleted iTunes losing all my data and thesame thing happened when I reinstalled iTunes, several times! Now I cannot use Apple TV. Frustrated.

isarver wrote:
What are the other components to uninstall besides the itunes program?
thanks.
See Troubleshooting issues with iTunes for Windows updates.
tt2

HT201210 Im getting a message that says the ipad cant be restored because the requested resource was not found. what does this mean?

Im getting a message that says the ipad cant be restored because the requested resource was not found. what does this mean?

Hi timtim89,
Thanks for visiting Apple Support Communities.
You may need to restore your iPhone after placing it in recovery mode. See this article for the steps:
iOS: Unable to update or restore
http://support.apple.com/kb/ht1808
Regards,
Jeremy

Newly downloaded version icon won't drag into Applications folder because I "don't have sufficient privileges" - what does that mean & how do I fix it?!

I opened a new window in Firefox, which was still open from last night. I saw the notice:
URGENT!
Your version of Firefox is no longer protected against online attacks.
Get the upgrade - it’s fast and free!
So, I clicked on the download which ran fine. At step 3, drag the Firefox icon to the Applications icon, a pop up said I didn't have sufficient privileges to do that.
What does this mean and how do I fix it?! Thank you,
Allison

You're welcome

Trying to update airport express by downloading airport utility 5.6 on my macbook pro/lion. getting error message "version of OS X on this volume is not supported" What does it mean?

Trying to update airport express by downloading Airport Utility 5.6 (which it says I need). When installing I get an error message, "...version of Mac OSX on this volume is not supported." What does it mean/what do I do?

For OS X Lion, you need to download this version directly from Apple Support Downloads.

TS1814 I tried updating my Iphone with ITunes & it told me: You canot download because Apple Moble Device service is not started. what does that mean & how do I deal with this??

I tried updating my IPhone with Itunes & it stated: You cannot complete your download because Apple Mobile Device service is not started....What does that mean & how do I fix it or get around it??
Rosie

Type "Apple Mobile Device service" into the search bar at the top of this screen by Support and read the resulting help article

My Ipod mini will not sync...A duplicate file name was specified. What does that mean?

My Ipod mini will not sync. I get the message that A duplicate file name was specified. What does that mean and how do I correct it so I can download my new purchases?
Thank you

Refer to my earlier reply, but here is a quick fix to the corrupted filesystem, which might work
Open My Computer
Right-click your iPod -> click Properties.
Click the Tools Tab -> Error Checking ->
Check "Automatically fix file system error"
k Start.
Let the scan complete, eject your iPod and reconnect.
Good Luck!

I keep getting this error message: ITunes was unable to load data class information from Synch Services. Reconnect or try again later. What does that mean? Can I fix it? or do I have to wait for the next update?

I keep getting this error message: ITunes was unable to load data class information from Synch Services. Reconnect or try again later. What does that mean? Can I fix it? or do I have to wait for the next update?

See TS2690: iTunes for Windows: "Unable to load data class" or "Unable to load provider data" sync services alert.
tt2

When I try to sync my ipod it says it cannot be synced because "a duplicate file name was specified". What does that mean and how can I fix it??

When I try to sync my ipod it says it cannot be synced because "a duplicate file name was specified". What does that mean and how can I fix it??

I'd start with the following document with that one:
iPhone, iPad, iPod touch: How to restart the Apple Mobile Device Service (AMDS) on Windows

Whenever I plug my iPod in the computer is comes up with this ..This iPod cannot be used because the Apple Mobile Device Service is not started. - what does this mean, how can i fix it?

Whenever I plug my iPod in the computer is comes up with this ..This iPod cannot be used because the Apple Mobile Device Service is not started. - what does this mean, how can i fix it?

Instructions here > iPod touch: How to restart the Apple Mobile Device Service (AMDS) on Windows
Or Mac > iTunes: How to remove and reinstall the Apple Mobile Device Service on Mac OS X

When i connect my ipod to my tv, it will tell me that the accessory is not supported, what does that mean and what can i do about it?

i plug the cable into my ipod touch then plug it to the tv, it works for a few seconds but then my ipod tell me that its not supported, what does that mean and what can i do about it?> and is tv out supported with the ipod touch? help please
runs ios 5.0
white ipod touch

i am using a cable connector like this one.. it works with audio when pluged into a stereo but not a TV.i am trying to display video from ipod, also from other apps.. i also want to know why it does not work.
i use the video app on the iPod and video stored on other aps.

I just recently bought a phone off craigs list from someone else and they didnt restore it so i tried to plug it in and restore it and it said the "apple mobile device is not started" what does that mean? and what can i do?

i just recently bought a phone off craigs list from someone else and they didnt restore it so i tried to plug it in and restore it and it said the "apple mobile device is not started" what does that mean? and what can i do?

You must be running Windows. AMD is a service that needs to be running in order to sync your phone. You need to start it as described here: http://support.apple.com/kb/ts1567.

HT1199 I updated Itunes on my PC and now when i try to open Itunes i get a error message saying "application failed to start because MSVCR80 was not found" then whenI close that pop up I get a error message saying "windows was not installed correctly Erro

I updated my itunes the other day and now it won't open I get error message saying "application failed to start because MSVCR80 was not found" When I close that window I get message stating Itunes was not installed correctly Error 7 Windows error 126. My PC is a Acer and I'm running Windows Visa. I tried to uninstall Itunes and reinstall it and get same message. Can anyone help.

Click here and follow the instructions. You may need to completely remove and reinstall iTunes and all related components, or run the process multiple times; this won't normally affect its library, but that should be backed up anyway.
(99659)

I have been using firefox on my desktop with windows xp for years with no problems and suddenly refused to open. The error message reads "unable to locate component. plc4.dll was not found." What does that mean? How do I fix it?

Similar Messages

Maybe you are looking for