Windows 7 - new update - Code 646 - that occur repeatedly for about a month now

Hi all!

I use Windows 7 Professional 64-bit. For the last month, my automatic updates continually seem to fail with an error Code 646. My only option so far has been to manually download the updates myself.

Just curious to know if anyone knows if there is some kind of problem that MS is currently studying, or if there is a fix out there somewhere that I forgot. Let me know if any information is needed to help solve this problem and I'll give you a pleasure all necessary information!

Thank you!!

Smaktard wrote: Update on what I look at in the 'Review Your Update History' section to check the duration of that happening. 03/11/2009 (too far this screen goes), the update "Security Update for Microsoft XML Core Services 4.0 Service Pack 2 for x 64 systems (KB954430).

See the «how to get help...» "and"Known issues"sections of ~ Robear Dyer (PA Bear) ~ MS MVP (that is to say, mail, security, Windows & Update Services) since 2002 ~ WARNING: MS MVPs represent or work for Microsoft

Tags: Windows

Similar Questions

  • When I launch the new photo or the new HDR feature fusion device, they start for about 10 seconds, but then I get the message error "an unknown error has occurred."  What should I do?

    When I launch the new photo or the new HDR feature fusion device, they start for about 10 seconds, but then I get the message error "an unknown error has occurred."  What should I do?

    There is a problem with these models of Leica cameras providing accurate information in the EXIF data F stop. Photomerge for HDR and Panorama will use this information to "mix" the image files. A solution has been found using an EXIF here Editor:

    Re: LR/ACR Pano merger combining Glitch

    This may or may not be the source of your problem, but worth investigating. Try to use any other device non-Leica and do a quick test Panorama or HDR and see if you get the same message.

  • Windows 7 could not search for new updates code error C80003FA

    I just activated Windows 7. When I tried to update, I have "Windows 7 could not search for new updates C80003FA error code".

    Tried three times with the same result. Could someone, please?

    C80003FA ReadVerifyFailure - a read verification error occurred.

    1. What is the suite of security/antivirus installed?
    2 is a 3rd party firewall installed?
    3 - is an upgrade to another edition of Windows?

    Please click on the round of departure. In the search field type programs and files in wups2.dll

    Under programs right click wups2.dll and choose Properties, when the Properties window opens, click the Details tab.
    Version of the file and the product should be showing 7.4.7600.226
    Now do the same for c:\windows\system32\wuaueng.dll
    He, too, should show file version and product like 7.4.7600.226
    If the version is earlier than that, you will need to install the more recent Version of the Windows Update Agent.
    The easiest way to do this is therefore download and Save the Fixit found here - How to reset the Windows Update components?
    Once the download completes close all open programs and browsers.
    Run MicrosoftFixit50202.msi and choose its default mode.

    BUT, if the installed firewall antivirus/security suite or a 3rd party is causing the "reading check error" then the Fixit may/does not work.
    If this is the case, then Configure the system to boot after download and Save the Fixit.
    Then, run the Fixit after the reboot to clean boot state.
    Restart and Cancel the clean boot steps, restart again to normal Windows mode.

    in the boot minimum state all the 3rd party firewalls will be disabled. When you run the Fixit either unplug the system from it is the network connection or make sure the native firewall of Windows 7 is now on by opening the control panel > Windows Firewall.

    Expert MowGreen Windows IT Pro - consumer safety

  • Error occurred when searching for new updates - code 80040154

    Windows Vista Service pack 2 32-bit operating system

    Windows Update can search for updates, get the error code 80040154

    Windows Defender can't check the updates of definition - error code 0 x 80244001

    McAfee can also get updates

    Also get some strange moment of operation online.  Click on a link and nothing happens, right click and can open the same link in a new tab.

    Thank you

    You may receive an error message that contains the code "0 x 80246008" when you try to download the updates on the Microsoft Windows Update Web site or the Microsoft Update Web site>

    0 x WU_E_PT_SOAPCLIENT_INITIALIZE 80244001 even SOAPCLIENT_INITIALIZE_ERROR - the SOAP client initialization failed, perhaps because of the failure of an installation of MSXML.

    Consult the below Microsoft article and try the steps mentioned and check if it works.

    How to troubleshoot Windows Defender definition update>

    There is a very strong possibility that the problem is due to an infection.

    Scan your computer now online!

    WinXP -online Windows Live Safety Center scanner 'Protection': The Windows Live Safety Center 'Protection' scan is forWindows XP only.

    Vista or Win7 (butnot 64-bit Vista or Win7 64 bit) => this scanner instead:

    Several posters in this focus group reported that the malware has been removed using the parser above.

    Others have used SUPERAntiSpyware (SAS) and/or of Malwarebytes' Anti-Malware (MBAM) to remove malware.

    There is a free version:

    Also free, Malwarebytes' Anti-Malware

    Unexplained computer behavior may be caused by deceptive software

  • I need assistance with the installation of 3 failures of updates for windows vista with error code 646

    I tried all day install the following updates:

    1 security Update for Microsoft Office Excel 2007 (973593 KB)
    2. security Update for Microsoft Office System 2007 (973704 KB)
    3. Update for Microsoft Office Word 2007 (974561 KB)

    Updates have been through to 4 am cst, but when I turned on my pc today, Windows Update showed that I needed to install updates 3 mentioned above. I tried all day to make install, but each attempt failed. I clicked the button 'Try Again' and always updates does not pass.

    I deleted the files that I no longer use of haven't used in a year or two. I also deleted some files that I have no use for out the files in the folder my documents. I even emptied my recycling bin to help clear up some disk deespace, still nothing.

    I tried the suggestions that are currently on the forum, but do not always help.

    When I went to manually download updates an error pops up saying "Package of Installation failed."

    Help, please. I need of new suggestions or something.

    I had to disable the "User Account Control" (UAC), which allows you to run as administrator in Vista.  After that I turned it off, all 4 of these updates installed and it doesn't require manual installation.   Follow these steps:

    In the case of Vista view:

    1.) go to start; Control Panel; "User accounts and family safety"; User accounts.
    2.) click on 'Enable user account control or disable' (last point on the page)
    3.) clear the checkbox "Use User Account Control (UAC) to help protect your computer" and click "OK."
    4.) restart the computer, and then run the installation of the system and they work.

    If you are in Classic view:

    1.) go to start; Control Panel; Security Center
    2 screen.) in the "Windows Security Center", go to the last item "User Account Control" and click the button to turn off.

    You can also see the security shield in your Start menu.  You can also access the UAC via this.

    After that the installation of the system have been updated, make sure that you go back and turn the UAC "" and then restart your computer so that unauthorized updates do not occur.   Always try this turn off if install doesn't work.

  • Windows not can find new updates (code 80004002)

    original title: Windows not can find new updates

    on the windows updates, I get a message that says "windows has not can find new updates a mistake due to the new updates for your computer errors found: code 80004002 Windows Update incountered a unknown error.» I can't seem to find a solution for this, pls help


    Please follow the steps below.

    Method 1:

    Run the Microsoft fixit from the link below.

    The problem with Microsoft Windows Update is not working

    Method 2:

    Follow the steps from the link below.

    Error message when you try to install updates by using Microsoft Update or Windows Update Web site: «0 x 80004002»

  • Windows Update - Code 646 error?

    Everytime I turn on my laptop, I have a little message that says: I have an update - so I click to install it and it gives me the same error code every time. Error code 646. This update is for security for Microsoft Works 9. The funny thing is, when I turn my laptop libere‑moi said it is necessary to install the update, but how can this be if it does not first place? Does anyone else have this problem?... and if so, how I eliminate it?

    Try this:

  • update code 646 windows has encountered an unknown error

    Hello, I can't install the update to windows and end up with the following error message code 646 windows update encountered an unknown error. so if anyone knows anything can you help me with instructions.

    See this thread: TaurArian [MVP] 2005-2010 - Update Services

  • Impossible to update error Windows could not search for new updates code: 8024A 000

    Original title: Windows does not run updates, error 8024A 000

    When I try to launch updated, I get the error msg could not windows search updates 8024A 000?


    Method 1:

    I suggest you to reset the Windows Update components manually by following the steps in the section Let me fixit myself .

    Warning: the section, method, or task contains steps that tell you how to modify the registry. However, serious problems can occur if you modify the registry incorrectly. Therefore, make sure that you proceed with caution. For added protection, back up the registry before you edit it. Then you can restore the registry if a problem occurs. For more information about how to back up the registry, click on the number below to view the article in the Microsoft Knowledge Base: .

    Method 2: Analysis of SFC (System File Checker)

    SFC scan will find all missing or incorrect system files and repairs them.

    See the following site:

    How to use the System File Checker tool to fix the system files missing or corrupted on Windows Vista or Windows 7


  • Windows XP security update (Code KB2481109Error: 0x8007F0F4)

    update the window cannot install the security update for Windows XP (KB2481109) error Code: 0x8007F0F4

    You may receive a "0x8007F0F4" error code when you try to install the updates on the Windows Update Web site or the Microsoft Update Web site>

    UTC/GMT is 19:24 on Sunday, February 12, 2012

  • I created a new administrator user account that has replaced the original one. Now I can not access my old files. What can I do?

    Windows XP Professional

    I found that will help you solve your problem,
    the original instructions have been written by Shenan Stanley
    Posts: n/a
    Re: Main administrator account appearing not
    If you can connect with the new account that you created (which should be an administrator account as well) then go directly to step 2 below.

    I suppose that you use the administrator account as your main account (bad
    idea anyway) and that means that you probably have Windows XP Professional * and *.
    somehow enabled the guest account or create a new account - or
    installed some patches that created a new account - as .NET.

    I guess also that (since you say "appear") you also use the 'Welcome' screen
    opening of session instead of the classic logon.

    (1) restart the system. Press CTRL + ALT + DELETE twice on home
    screen. Type in "Administrator" (without the quotes) as the username
    and do not put in any password and logon. Work?

    (2) or follow the instructions below to add the administrator account of
    the Welcome screen * or * download/use TweakUI to choose that is visible on
    the screen of welcome and even set automatic logon if you want.

    How to add a user to the Welcome screen logon page:
    1. start regedit.exe (start--> RUN--> REGEDIT--> OK)
    2. navigate to:
    NT\CurrentVersion\Winlogon\SpecialAccounts\UserLis t.

    3. on the Edit menu, select new, DWORD value.
    4. type administrator as the name, and then press ENTER.
    5 double-click on the new value it the value 1 and click OK.
    6. close the registry editor.

    The administrator account will now appear on the Welcome screen. You can use
    These same steps to control other accounts listed on the welcome
    screen. The value of the registry value to 1 to display an account or account 0 for
    hide an account. For example, to hide the user Bob account, add a value
    named "Bob" in the registry key identified in step 2, then set the value to 0.

    You can do the above with the Microsoft TweakUI PowerToy.

    Automatic logons:
    Method of Microsoft:

    Method 2 of Microsoft:
    TweakUI for:

    control userpasswords2 method:
    (1) go to the Start Menu and run the box.
    (2) type the following:

    Control userpasswords2

    Now click on OK
    (3) in the new Windows that appears select the account you want to make the
    opening main session.
    Now, uncheck the box "users must enter a user name and password... ».
    (4) hit apply and a dialog box will appear asking you to confirm the selected
    user password.
    Click OK when you have finished...

    I hope this gets you where you are wanting to be.

    It's a * good * thing in the field of the user to:
    (1) have strong passwords.
    (2) have more than one account to administrator (with strong passwords).

    I know - you are the "only one who lives there, the only person who uses your.
    computer'... etc. Large. When your House is burgled and computer

    stolen (physically or virtually)<- you="" may="" be="" thinking="">
    Another thing, like ' all my (the only person who lives here, the only person who).
    Use this computer) documents, pictures, e-mails, financial information, updated in cache
    Passwords, contacts, etc... are on this computer. »

    But it's an individual choice. You get to evaluate risk. =)

  • Updated Firefox to update automatically so that the internet has been disconnected, and now it's showing I updated Firefox. What should I do?

    I started Firefox even if the internet has been disconnected. But before opening, Firefox updated automatically, not advising me that I was disconnected. It shows now that I have the newest version of Firefox. What should I do?
    Operating system: Windows XP Professional Service Pack 2.

    He's going to have downloaded the update while you were connected and the next time you start Firefox, it will have installed upgrading if you were connected or not.

  • Responsible for Vista and works fine for about 2 days now, I get the product in use key try AnotherOne coming soon. I have old MB and HARD drive if that can help prove that I only want to use the key on a single machine.

    As noted, my motherboard has failed.  IDE only AGP CPU core.  Not much use trying to find anotherof those.  Replaced the motherboard with a newer version.  It has SATA, multi core processor, etc.  Processor and HARD drive had to be replaced.

    My Vista home premium 32 bit running on my machine for years.  I loaded it on the upgrade with no problems.  Went to windows update and SP1 and then SP2 and all other windows updates suggest and worked very well, for a few days.

    Now, I get a message that the product key is already used and need to buy AnotherOne coming soon.

    I didn't really want to do.


    Diagnostic report (1.9.0027.0):
    Validation of Windows data-->
    Validation status: genuine
    Validation code: 0
    Code of Validation caching online: 0x0
    Windows product key: *-* - R3PWW - Q9F83-MPGXJ
    Windows product key hash: V0k0X5Bh6bySPjhN3xP0FNlEfXY =
    Windows product ID: 89578-OEM-7359704-12357
    Windows Product ID Type: 3
    Windows license Type: OEM System Builder
    The Windows OS version: 6.0.6002.2.00010300.2.0.003
    ID: {694FC5E9-29B3-4912-BE59-B80F163CD007} (3)
    Admin: Yes
    TestCab: 0x0
    LegitcheckControl ActiveX: Registered,
    Signed by: Microsoft
    Product name: Windows Vista (TM) Home Premium
    Architecture: 0x00000000
    Build lab: 6002.vistasp2_gdr.111025 - 0338
    TTS error:
    Validation of diagnosis:
    Resolution state: n/a

    Given Vista WgaER-->
    ThreatID (s): n/a, hr = 0 x 80070002
    Version: N/a, hr = 0 x 80070002

    Windows XP Notifications data-->
    Cached result: n/a, hr = 0 x 80070002
    File: No.
    Version: N/a, hr = 0 x 80070002
    WgaTray.exe signed by: n/a, hr = 0 x 80070002
    WgaLogon.dll signed by: n/a, hr = 0 x 80070002

    OGA Notifications data-->
    Cached result: n/a, hr = 0 x 80070002
    Version: N/a, hr = 0 x 80070002
    OGAExec.exe signed by: n/a, hr = 0 x 80070002
    OGAAddin.dll signed by: n/a, hr = 0 x 80070002

    OGA data-->
    Office status: 109 n/a
    OGA Version: N/a, 0 x 80070002
    Signed by: n/a, hr = 0 x 80070002
    Office Diagnostics: 025D1FF3-364-80041010_025D1FF3-229-80041010_025D1FF3-230-1_025D1FF3-517-80040154_025D1FF3-237-80040154_025D1FF3-238-2_025D1FF3-244-80070002_025D1FF3-258-3

    Data browser-->
    Proxy settings: N/A
    User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Win32)
    Default browser: C:\Program may Explorer\iexplore.exe
    Download signed ActiveX controls: fast
    Download unsigned ActiveX controls: disabled
    Run ActiveX controls and plug-ins: allowed
    Initialize and script ActiveX controls not marked as safe: disabled
    Allow the Internet Explorer Webbrowser control scripts: disabled
    Active scripting: allowed
    Recognized ActiveX controls safe for scripting: allowed

    Analysis of file data-->

    Other data-->
    Office details: {694FC5E9-29B3-4912-BE59-B80F163CD007}1.9.0027.06.0.6002.2.00010300.2.0.003x 32*-*-*-*-MPGXJ89578-OEM-7359704-123573S-1-5-21-4094595745-936093891-605987175Gigabyte Technology Co., Ltd.. GA-990FXA-UD3 Award Software International, Inc.. F5 20111013000000.000000 + 000F1303507018400FC04090409Time(GMT-05:00) Standard is03109

    Content Spsys.log: 0 x 80070002

    License data-->
    The software licensing service version: 6.0.6002.18005
    Name: Windows Vista, HomePremium edition
    Description: operating system Windows - Vista, channel OEM_COA_NSLP
    Activation ID: f3acdd3c-119a-4932-a3d7-0b6f33a1dca9
    ID of the application: 55c92734-d682-4d71-983e-d6ec3f16059f
    Extended PID: 89578-00146-597-012357-02-1033-6002.0000-1272012
    Installation ID: 008920048280820090098534504852850165622866742580089774
    Processor certificate URL:
    Machine certificate URL:
    Use license URL:
    Product key certificate URL:
    Partial product key: MPGXJ
    License status: initial grace period
    Time remaining: 36240 minute (s) on (25 day (s))

    Windows Activation Technologies-->

    --> HWID data

    Activation 1.0 data OEM-->

    Activation 2.0 data OEM-->
    BIOS valid for OA 2.0: Yes, but no SLIC table
    Windows marker version: N/A
    OEMID and OEMTableID consistent: n/a
    BIOS information:
    ACPI Table name OEMID value OEMTableID value

    OEM copies are not transferable between different motherboards.  The license is linked to the mobo mounted.  You are allowed to reagent a mobo replacement of the same make and model, but not an 'upgrade '.  However, you can try to activate by phone.  An agent can help you.

    Activate by phone. (WS.10) .aspx

    Or click Start and type ' slui.exe 4.

  • I used to receive updates weekly, but i've got none for about a month. Whats happened?

    I have notifications of updated since May 13. When I check the updates, it says that there is no new update for my computer. I fear that something is wrong.

    There were no Vista update, out since May 10, outside the WIndows Defender and Microsoft Security Essentials definitions if you have these products.

    The next updates are scheduled to be released at 10:00 am PST on June 14.

  • Windows could not search for new updates, code 80072EFE

    What I did before was update my ATI Radeon HD4550 video player

    Take a look at this article: you may experience temporary related connection errors

    If this does not help then please post with the information requested here: what to post in the Windows Update forum
    Start with these troubleshooting steps and post returns with the requested info and arises from the troubleshooting.

    Clean boot your PC, and then run Windows Update.

    Reset the Windows Update components

    Perform operations of KB883825 Mike - engineer Microsoft Support responses
    Visit our Microsoft answers feedback Forum and let us know what you think.

Maybe you are looking for

  • Removal of the SBS 2011 server how to migrate DHCP and DNS services to the firewall

    I have a small client that has an old server that comes close to falling; its off primary runnign the disk space and must often be restarted.  they do not need the server and it was decided to remove the server and use a working group with NAS drive

  • Can I upgrade or change?

    I have a HP Pavilion dm4 2165dx model and I saw the specs on same model online computer and he says it has Intel Graphics Card 3000, but when I check mine, he said Intel HD family graphics card? The reasons why? And if so, is it possible to change th

  • BlackBerry Smartphones BB Maps on Orange UK (resolved poss)

    Hi, I put it in its own thread now that the majority of users wanted the cards on Orange UK. Link to thread

  • quick selection tool stop working

    Suddenly the Quick Selection tool leaves working in photoshop cs6. Other tools of work. I rebooted and set the preferences of all the original settings.Any help really appreciated.Thank youJoe

  • CentOS 7 customization fails

    Hello to you all,.I have a serious problem with customization CentOS 7 host and domain name. When I'm trying to customize, all right, there is no error. However, when the process is complete the name is still localhost.localdomain. The problem does n