Fix Your Vista Error Code 646

Learn how to fix error code 646 in windows vista system on this help guide page informations.

We have found windows error from microsoft support or answers help links to resolve

  • Questions & Error Message:
    Error Code 646 for Windows Vista” 

    When I try to install these updates, I get a error code 646. I have a Dell Inspiron 1501 laptop with Windows Vista.
    Security Update for Microsoft Office Visio Viewer 2007 (KB973709)
    Download size: 2.5 MB
    You may need to restart your computer for this update to take effect.
    Update type: Important
    A security vulnerability exists in Microsoft Office Visio Viewer 2007 that could allow arbitrary code to run when a maliciously modified web page is opened. This update resolves that vulnerability.

  • Answers:
    Windows Vista Home Premium – fix this problem

    The answer to the mystery of “Why the Windows Security updates do not install are:

    Go to: Start > Control Panel > CLICK User Accounts > Turn User Acct On or Off > WINDOW OPENS asking permission > CLICK Continue >
    UNCHECK the box “UAC Use user account control to help protect your computer.

    Go to: Start > Program > Windows Updates Install >

    Once the updates have been installed go back to the Control Panel > User Accounts > Turn User Acct On or Off > CHECK the box “UAC Use user account control to protect your computer.


Computer That is we find the informations to fix code 646 problems                         inwindows vista, hope our page is helpful to you, if you still haven’t                     fixed this errors, please contact microsoft support for further help.

Courtesy –

For any questions, queries please do not hesitate to leave a comment in the queries page at the bottom of the page or contact us at


Join us on facebook


5 responses to “Fix Your Vista Error Code 646

  1. Considerably, this post is really the sweetest on this notable topic. I harmonise with your conclusions and will thirstily look forward to your incoming updates. Saying thanks will not just be sufficient, for the phenomenal clarity in your writing. I will directly grab your rss feed to stay informed of any updates. Admirable work and much success in your business dealings!  Please excuse my poor English as it is not my first tongue.

    • For updates u cud check the blog and also become a fan of our facebook page too. that is updated as soon as every post is added.

  2. Thanks for taking the time to talk about this, I feel strongly about it and appreciate finding out additional on this subject. Would you thoughts updating your blog with extra information? It is very useful for me.

  3. Pingback: April 2011 Windows Updates - Fabtechguy News on Microsoft Windows and more

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google+ photo

You are commenting using your Google+ account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )


Connecting to %s