Update error unknown error 643

For some reason my computer will not download the .NET framework, version 1.1 Service pack 1 (KB929729)... I tried to install several times. I don't know what was going on. Help, please! Thank you

Hello Dcsportsfan5,

If it please ignore the previous answer & follow the below troubleshooting,
1. download the .net Framework removal tools "dotnetfx_cleanup_tool.zip" link, below
http://blogs.msdn.com/astebner/attachment/8904493.ashx

Open & click to open Cleanup_tool.exe, click Yes twice to install the .net Framework Setup Cleanup Utility.

2. Remove only that the version of the .net framework, for which you receive error code during execution of the installation. for example, select .NET Framework 1.1 & click "cleanup now".

3. restart your computer.

4. now, download & install the Microsoft .NET Framework Version 1.1 Redistributable Package from the following link
Microsoft .NET Framework Version 1.1 redistributable package
http://www.Microsoft.com/downloads/details.aspx?FamilyId=262D25E3-F589-4842-8157-034D1E7CF3A3&displaylang=en

5. download & install Microsoft .NET Framework 1.1 Service Pack 1
http://www.Microsoft.com/downloads/details.aspx?FamilyID=a8f5654f-088e-40b2-bbdb-a83353618b38&displaylang=en

6. then, download & install Microsoft .NET Framework 1.1 Service Pack 1 for the SYSTEM. WEB. DLL and MSCOREE. DLL Security Update for Windows Vista
http://www.Microsoft.com/downloads/details.aspx?FamilyId=7EEA368D-7B82-4583-8537-30351718A4E9&displaylang=en

I hope this helps.

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Tags: Windows

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