Windows Update Error Code 643

W'dows Vista service pack2
Dell C 521

I am experiencing repeated failure for a security update to : M'soft.NET framework 1.1

I've tried M'soft Mr Fixit & Command Prompt to no avail.
I've also tried a repair via Programmes & Features but that option is not available.
I've also tried:Start/type uninstall in the searchbox, but Uninstall a Programme does not show.
Can you kindly advise before I reach for the bottle of pills and scotch whisky...!
Thank you.

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Reply to: Windows Update Error Code 643
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Re: error .Net framework

In Control Panel>Programs and Features uninstall .Net framework 1.1. If you ever need it again, download (and install) the current version from


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Re: error .Net framework

Thank you Kees.
I take it that you don't need the programme then ?

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It depends. You could have an installed program on your computer that needs .Net Framework 1.1.

That program will tell you it needs it when you run it.

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Re: error .Net framework

I understand, many thanks Kees.

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