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.

More information:
http://support.microsoft.com/kb/973709

Help and Support:
http://support.microsoft.com/?LN=en-us



Security Update for the 2007 Microsoft Office System (KB972581)

Download size: 1.0 MB

You may need to restart your computer for this update to take effect.

Update type: Important

A security vulnerability exists in the 2007 Microsoft Office System that could allow arbitrary code to run when a maliciously modified file is opened. This update resolves the vulnerability so that the 2007 Microsoft Office System documents are handled appropriately.

More information:
http://support.microsoft.com/kb/972581

Help and Support:
http://support.microsoft.com/?LN=en-us



Security Update for the 2007 Microsoft Office System (KB974234)

Download size: 525 KB

You may need to restart your computer for this update to take effect.

Update type: Important

This update resolves a problem that can cause programs that use the Outlook View Control with Forms 2.0, such as Microsoft Office Outlook with Business Contact Manager, to stop functioning as expected after Security Update for Microsoft Office Outlook 2007 (KB972363) is installed.

More information:
http://support.microsoft.com/kb/974234

Help and Support:
http://support.microsoft.com/?LN=en-us
 

Question Info


Last updated March 25, 2018 Views 20,123 Applies to:
Answer
Answer

Okay...I had the same issue with downloading the security updates for Microsoft 2007. When I tried to install the updates I would receive Error 646. I finally resolved my issue by going to Microsoft's download center and manually installing myself.

Here are the steps I took...which I believe should work:

1) Go to Microsoft's Download Center: http://www.microsoft.com/downloads/en/default.aspx
2) Search each update code which starts with the letters "KB" and followed by a set of numbers (i.e, KB974234)
3) Click the link for the download and then click download and run. I believe you will have to accept an agreement and then click continue or okay
4) Repeat for all the downloads that you are unable to install
5) Run Microsoft update again and click on check for updates and if the updates were successfully installed they should no longer appear in the updates that need to be installed.

I don't know if this is irrelevant or if it helped me be successful in manually installing the updates but before I manually installed my updates I followed the instructions that David_O posted here http://social.answers.microsoft.com/Forums/en-US/vistawu/thread/f3390e74-9961-4aae-8a05-554c1a9cf1a2 . I suggest you first try to manually download by following my directions. If it doesn't work then it is a possibility that David's instructions resolved some issue that allowed me to manually download them off the Microsoft downloads site.

I can't believe all the research and suggestions from techs did not work.....sometimes your own research is the best!

Hope this helps! Good Luck!

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