When i try to install Firefox 4 on my 64 bit Windows 7 Ultimate, error that it is not a valid win32 application

When I downloaded the Firefox 4 installer and tried to install the software, an error message appeared that the application was not a valid win32 application. have deleted the file, re-downloaded it but with same effect. Therefore I cannot install Firefox 4
I have Windows 7 Ultimate 64 bit, 4 GB internal memory,
Intel i7 processor. language English

It is possible that your anti-virus software is corrupting the downloaded files or otherwise interfering with downloading files by Firefox.
Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.
See "Disable virus scanning in Firefox preferences - Windows"
* http://kb.mozillazine.org/Unable_to_save_or_download_files

Similar Messages

  • When I try to open Firefox 4.0 I get an error message saying that it is not a valid Win32 Application. What do I do? I am using Windows XP Sp3

    I downloaded Firefox 4.o exe. When I tried to open it I got an error message stating that it was not a valid Win32 application. I am using windows XP SP3. How do I get it to open?

    [[Firefox is already running but is not responding]] has steps that you can try. It sounds like you may have something that is hanging your browser on exit (probably an extension or a locked profile) and the steps on that page should help clear it up.

  • When i down load a program on firefox i can never open it ...it says it not a valid win32 application

    when i down load a program on firefox i can never open it ...it says it not a valid win32 application
    i down loaded firefox 3.611 threw firefox and thats the erro it gave me and on anyother application i down load it alway tell me this when i go to run it... it not a valid win32 application

    It is possible that your anti-virus software is corrupting the downloaded files or otherwise interfering with downloading files by Firefox.
    You can try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.
    See http://kb.mozillazine.org/Unable_to_save_or_download_files

  • I have switched offices and computer. may I still access my old tunes? next, I get an error when trying to download Itunes to my new compuet: c:\DocumentsandSettings\aabugattas\desktop\itunessetup.exe is not a valid Win32 application  How can i download i

    I have switched offices and computer. may I still access my old tunes? next, I get an error when trying to download Itunes to my new compuet: c:\DocumentsandSettings\aabugattas\desktop\itunessetup.exe is not a valid Win32 application  How can i download it?

    In the course of your troubleshooting to date have you worked through the following document?
    iTunes: Windows reports that "iTunesSetup.exe is not a valid Win32 application"

  • Error 'RecoveryMgr.exe is not a valid Win32 application' when trying to restore in Win7

    I really hope someone can help as this is driving me mad!
    System details - G62 Notebook running Windows 7
    The notebook crashed after a Windows update and wouldn't boot up.  I made it into the recovery manager and back my files before restoring to factory settings. 
    Since getting back in I am unable to get my files back.  I have tried through the recovery manager but it does not allow me to see the files on the dvd.  I have also tried through backup and restore but no joy there either.  When I click on RecoverMgr.exe on the dvd I get error 'RecoveryMgr.exe is not a valid Win32 application' and it won't open.
    I hope someone has managed to solve this before as I would love my files back.  All suggestions greatly appreciated and thanks in advance.

    Thanks Mumbodog.  Unfortunately I have tried and the files won't copy.  Starting to think they are corrupt!  Have tried on a few different PC's but no luck.  Really annoyed   Any other suggestions?

  • Everytime I try to download itunes I get a message that says its not a valid Win32 application

    Everytime I try to download iTunes on my computer it says it is not a valid Win32 application. Also, when i plug in my ipod, iPhone4S, or my iPhone5, they show up as cameras instead of phones and iPod. How can fix these issues?

    Hi there,
    I would recommend taking a look at some of the troubleshooting steps found in the article below.
    Trouble installing iTunes or QuickTime for Windows
    http://support.apple.com/kb/ht1926
    -Griff W.

  • When trying to open documents, getting error as File is not a valid Win32 application

    Hi,
    I am trying to open a MPP by clicking on the name of the file. But I am getting the error as "path\filename.mpp is not a valid Wind32 application".
    I am able to save the document and open it in MPP, but clicking on the document name is giving this error "File is not a valid Win32 application".
    I have tried to repair "Microsoft Project". But still the same issue. I am using Office 2010. SharePoint site is SP 2010.
    How to fix this?
    Thanks

    Hi Ed,
    I am sorry, but I could not understand that answer.
    I have put that answer in the below quotes:
    "You are never going to believe what I did. This is a nice ending to a very confusing situation. lol
    I uninstalled Project 2007 and rebooted my laptop and reinstalled Project 2007. No Difference at all. Same thing happened. I just couldn't stop thinking about how 2007 Microsoft Office Component kept showing up in default programs. This has bugged me for days.
    I went browsing in my program files. I typed in Microsoft Office Project. The only thing I found was WINPROJ. I decided to check it out. I checked it's properties, size, location, etc.. What did I have to lose at this point? I clicked on it and it went into
    my default programs as Microsoft Office Project 2007. This doesn't make any sense to me. But, don't try to fix anything else if it isn't broken, right? It's working and I am so relieved. I mean, YAAAAY!!! Another mystery solved...
    Thanks for hanging in there with me to help solve this mystery. You have been of great assistance to me. You made me think outside the box and it worked.
    Laura"
    Does it mean MPP Should be a 2007 version?
    Thanks

  • While trying to install Firefox I keep getting the error that it isn't a valid win32 application.

    I used the control panel, add and install programs to uninstall the version of Firefox that I was running, 8 I think. Sure that I could just easily download a new one and start fresh.

    I copy pasted this from the developers website for the minimum requirements of your device: Macintosh® OS X 10.4 – 10.5, PowerPC G4, G5 or Intel Core Duo processor, 800 MHz processor or higher, 256 MB RAM, CD/DVD-ROM drive, 300 MB free hard disk space, Video card with 32 MB of video RAM, 1024 x 768 24-bit color display, Speakers, keyboard & mouse.
    Does a macbook pro meet these requirements?

  • I keep getting the following message when I try to install firefox.."your computer must be restarted to complete a previous install of firefox" I've restarted numerous times..keep getting the same message

    I keep getting the following message when I try to install firefox.."your computer must be restarted to complete a previous install of firefox" I've restarted numerous times..keep getting the same message

    Have a look at the solution to a similar problem: https://support.mozilla.org/en-US/questions/921375?s=%22Your+computer+must+be+restarted+to+complete+a+previous+upgrade+of+Firefox.+Do+you+want+to+reboot+now%3F%22&r=0&e=sph&as=s
    If that doesn't work, you can uninstall FF and do a clean install. You'll prob lose your bookmarks, history, etc, though, so if you do this set up Sync first! https://support.mozilla.org/en-US/kb/what-firefox-sync-and-how-do-i-use-it

  • When I try to install Firefox, I get a "can not open output file" error. I was using Firefox before and it stopped working, so I uninstalled. Cannot re-install now.

    When I try to install Firefox, I get a "can not open output file" error. I was using Firefox before and it stopped working, so I uninstalled. Cannot re-install now.
    == This happened ==
    Every time Firefox opened
    == I tried to download firefox. ==
    == User Agent ==
    Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1; SV1; AntivirXP08; GTB6.3; .NET CLR 2.0.50727; MS-RTC LM 8)

    When you click the download link on [http://getfirefox.com GetFirefox.com], you should be asked if you wish to Run or Save the file. If the described situation happens when trying to Run the download, try instead to Save it and put the file on your Desktop or a similar place where you are certain that you can find it again.
    When the download is complete, try double-clicking the downloaded file in the normal Windows Explorer (browse your way to the file from My Computer). This should start the installation.
    If you notice in the Explorer window that the file seems to be lacking the Firefox orange/blue icon, rightclick the file and select Properties. The picture should look somewhat like the attached picture (except that mine's in danish, but that is irrelevant) if saved correctly - if it does NOT look like this, please describe the contents or attach a screenshot of the box. Especially what it says under "File type" - it should be "Program"; if it's not, we'll have to look into what the problem could be here.
    Slightly off-topic, your Internet Explorer seems to be quite a bit out of date (IE 6, where current version is IE 8), so I would strongly recommend that you try to run Windows Update to get your system updated. If this is a company system (like a Terminal Server thin client machine), this may not be possible, and your system administrator will most likely have to help you.

  • When i try to install firefox again it says the computer must be restarted to finish uninstalling previous version, but when rebooted and tried again it says the same thing, What do I do?

    when i try to install firefox again it says the computer must be restarted to finish uninstalling previous version, but when rebooted and tried again it says the same thing, What do I do?

    Please try this: Copy the files formhistory.sqlite (or formhistory) and places.sqlite (or places) if they exist and delete the entire Mozilla folder in %APPDATA% and also the Firefox folder in Program Files. [https://support.mozilla.com/en-US/kb/Backing%20up%20your%20information Please see this.]

  • When I try to install Firefox on my new Windows 7 computer it tells me the application is corrupt. What's up with that???

    When I try to install Firefox on my brand new desktop (which uses Windows 7) it tells me the file is corrupt. What is up with that?

    Start Firefox in [[Safe Mode]] to check if one of your add-ons is causing your problem (switch to the DEFAULT theme: Tools > Add-ons > Themes).
    See [[Troubleshooting extensions and themes]] and [[Troubleshooting plugins]]
    See also http://kb.mozillazine.org/Corrupt_localstore.rdf

  • When I try to install Firefox, windows asks me if I want to allow this program to make changes to my computer and then nothing happens whether I say yes or no?

    Question is asked by "user account control"

    Even if you are logged on with an Administrator account then you should still not run Firefox with Administrator permissions.<br />
    I would assume that is already installed, but if this is happening when you try to install Firefox then you need to right-click the Firefox installer and choose Run as Administrator to make sure to get the proper permissions to install the Firefox program and create the required registry keys.<br />
    Then you need to confirm that you want to install the program.<br />
    If Windows blocks the file because it is downloaded from internet then open the Properties via the right-click context menu and check the Security tab.

  • When I try to install Firefox with the 6.0 setup, it says it's not a valid win32 application, this is on windows xp any way to fix?

    It is an oldish computer running windows XP, moving to firefox since I used it on my laptop and wanted to put it on this computer. I ran the setup and it says it is not a valid win32 application and closes, well i say close, it barey opens. i also tried saving the setup and runnig it that way but that failed as well. I might just download an older version of firefox, but I'd love to use the latest one.

    It is possible that your anti-virus software is corrupting the downloaded files or otherwise interfering with downloading files by Firefox.
    Try to disable the real-time (live) scanning of files in your anti-virus software temporarily to see if that makes downloading work.
    See "Disable virus scanning in Firefox preferences - Windows"
    * http://kb.mozillazine.org/Unable_to_save_or_download_files

  • I am running Windows 7 Professional.  When I try to install Flashplayer, I get to step 3, and then the installation will not proceed any further.  A blank dialog box appears, with Adobe Flash Player Installer in the upper left corner.  I have tried to ins

    I am running Windows 7 Professional.  When I try to install Flashplayer, I get to step 3, and then the installaion will not proceed any further.  A blank dialog box appears, with Adobe Flash Player Installer in the upper left corner.  I have tried to install on Explorer, Firefox, and Chrome.  Nothing works. Please help.
    Thanks/ Scott

    1. Restart your computer to stop any Adobe process that is running.
    2. Click on the following Adobe  link. Go to the bottom where it says "Still having problems?". Click on the version of Flash Player for your browser.
    Installation problems | Flash Player | Windows

Maybe you are looking for