error code 646
Every time i try to install an important update i get get an error code. I just tried again on 11/13/09 to install 3 more important updates and once again it did not install and i got an error code 646. I tried to do the technical support but nothing worked. Can someone help me, is there anything i can do?
November 13th, 2009 11:07am

I am having the very exact problem. i need help with this too!
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November 13th, 2009 10:54pm

Same problem here! I can't find any answers.
November 14th, 2009 8:06pm

I am having the exact same problem. Please someone help!
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November 15th, 2009 10:50am

Also having the same problem...I had this problem on another computer and after several days, it some how resolved itself. I did contact Microsoft about the problem, but that didn't really help. I got tired of messing with it and just left it...and then for some reason it resolved itself. Now I'm having the same problem on a different computer in trying to install the same updates. This has to be a big enough problem that Microsoft should have a reasonable solution.
November 15th, 2009 12:36pm

I am having the same problem, I have followed all the advice I could find. I turned off my firewall, downloaded the windows update installer, updated the registery.bat, nothing is working. I am frustrated. This happeend once and all I needed to do was turn off the firewall and it worked, that is not working anymore. Please HELP!
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November 15th, 2009 2:46pm

I am having the same exactly problem. Microsoft should have already fixed this if so many people have had this problem.
November 16th, 2009 9:16pm

i am having this same issue!! UGH!
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November 17th, 2009 7:25pm

Same issue 7 updates will not install all are for ms works or ms office. Please Microsoft fix this!
November 18th, 2009 7:43am

OMG i'm having the same problem too! i've tried 5 times...microsoft needs to fix this now!
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November 18th, 2009 11:06pm

I am having the same problem -
November 19th, 2009 8:28am

same problem - no answers!!!!!!!!!!
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November 20th, 2009 6:35am

I see that I'm not the only one having this problem. I hope to get some answers. It's hard to contact Microsoft by email anymore. I had a few email addresses for Microsoft, but I get delivery failure.
November 22nd, 2009 7:57am

I've been having the same problem for the past 2 months and its starting to tic me off.
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January 1st, 2010 1:33pm

I am having the very exact problem. i need help with this too!
January 11th, 2010 1:04am

I've been having this problem for months. Turning off the firewall did nothing to help. Now what???
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January 27th, 2010 6:24am

i need help to install windows update... for security update
August 17th, 2010 10:43am

has anyone got any answers for this problem yet?
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August 17th, 2010 8:08pm

If you have a question related to Windows Update, please post your question in the dedicated Windows Update Forum. Thank you for your cooperation!Carey Frisch
September 10th, 2010 1:03am

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