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.net framework 3.5 service pak 1 update will not install, I have windows xp with service pak 3.

Applies To:
Automatic updates have tried numerous times to install this update, could there be something wrong, or is it necessary to install this update?
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luckyd

luckyd

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Answer

What update (e.g. KB951847)?

When installing updates using Windows update or Microsoft Update you may receive Error 0x643 or 0x80070643 (23 Oct-09)
http://support.microsoft.com/kb/976982

=====================

Step #1 => Before doing anything else, write down what .NET Framework versions are currently installed:

How to determine which versions of the .NET Framework are installed and whether service packs have been applied
http://msdn.microsoft.com/en-us/kb/kb00318785.aspx

Step #2 => Now see Resolution Method 2 in this related KB article: http://support.microsoft.com/kb/923100

After running the .NET Framework Cleanup Tool (not the Windows Installer Cleanup utility, Shalini S!), reinstall all .NET Framework versions (but only the ones you wrote down in #1 above) manually using the download links on the page then run Windows Update manually to install security updates for same.

NB: If you remove .NET Framework 3.5 (SP1) using the tool, reinstalling .NET Framework 3.5 will also install .Net Framework 2.0 SP2 and 3.0 SP2; then Windows Update will offer .NET Framework 3.5 SP1.

IMPORTANT! => If you remove .NET Framework 3.5 (SP1), reinstall your .NET Framework versions in the following order:

    1. .Net Framework 3.5, then...
    2. .Net Framework 1.1, then...
    3. .Net Framework 1.1 SP1

NB: KB923100 references this page: http://blogs.msdn.com/astebner/archive/2006/05/30/611355.aspx.  Please read ALL of it as well as the related page http://blogs.msdn.com/astebner/pages/8904493.aspx before using the .NET Framework Cleanup Tool.

Step #3 => Check-in at Windows Update and install any critical security updates offered.

~Robear Dyer (PA Bear) ~ MS MVP (IE, Mail, Security, Windows & Update Services) since 2002 ~ Disclaimer: MS MVPs neither represent nor work for Microsoft
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PA Bear MS MVP

PA Bear MS MVP MVP
Community Star
~Robear Dyer (PA Bear)
MS MVP-Windows Client (IE, Mail, Security & Update Services) since 2002

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Hi Luckyd,
 
1) Do you get any error message while installing net framework 3.5?

2) How did you try to install net framework 3.5?

Method 1: Manually remove and reinstall .NET Framework

To manually remove and reinstall the .NET Framework, follow these steps:

1. Remove the .NET Framework.

a. Click Start, and then click Control Panel.

b. Double-click Add or Remove Programs.

c. Note each version of the .NET Framework that is already installed on the computer. Then, uninstall all the versions of the .NET Framework.

d. When you are prompted, restart the computer.

Method 2:  Also download Windows Installer Clean Up Utility tool and check if issue persist.
 
Description of the Windows Installer CleanUp Utility

http://support.microsoft.com/kb/290301
 
For clean up and installation you can refer to the below mentioned link:
 
http://support.microsoft.com/kb/923100
 
Add this link to download windows installer cleanup utility:
http://download.microsoft.com/download/e/9/d/e9d80355-7ab4-45b8-80e8-983a48d5e1bd/msicuu2.exe

Method 3: Reset the Windows Update components

The article given below helps you reset the Windows Update components.

To reset the Windows Update components go to the "Fix it for me" section. To reset the Windows Update components automatically, click the Fix it button or link. Click Run in the File Download dialog box, and then follow the steps in the Fix it wizard.

To download Microsoft .NET Framework 3.5 Service Pack 1 visit the link given below:
http://www.microsoft.com/downloads/details.aspx?FamilyID=AB99342F-5D1A-413D-8319-81DA479AB0D7&displaylang=en

Thanks and Regards:
Shalini Surana - Microsoft Support.
Visit our  Microsoft Answers Feedback Forum and let us know what you think. 

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Vaseem Ahmed

Support Engineer
Vaseem Ahmed
Community Star

Was this helpful?

Answer

What update (e.g. KB951847)?

When installing updates using Windows update or Microsoft Update you may receive Error 0x643 or 0x80070643 (23 Oct-09)
http://support.microsoft.com/kb/976982

=====================

Step #1 => Before doing anything else, write down what .NET Framework versions are currently installed:

How to determine which versions of the .NET Framework are installed and whether service packs have been applied
http://msdn.microsoft.com/en-us/kb/kb00318785.aspx

Step #2 => Now see Resolution Method 2 in this related KB article: http://support.microsoft.com/kb/923100

After running the .NET Framework Cleanup Tool (not the Windows Installer Cleanup utility, Shalini S!), reinstall all .NET Framework versions (but only the ones you wrote down in #1 above) manually using the download links on the page then run Windows Update manually to install security updates for same.

NB: If you remove .NET Framework 3.5 (SP1) using the tool, reinstalling .NET Framework 3.5 will also install .Net Framework 2.0 SP2 and 3.0 SP2; then Windows Update will offer .NET Framework 3.5 SP1.

IMPORTANT! => If you remove .NET Framework 3.5 (SP1), reinstall your .NET Framework versions in the following order:

    1. .Net Framework 3.5, then...
    2. .Net Framework 1.1, then...
    3. .Net Framework 1.1 SP1

NB: KB923100 references this page: http://blogs.msdn.com/astebner/archive/2006/05/30/611355.aspx.  Please read ALL of it as well as the related page http://blogs.msdn.com/astebner/pages/8904493.aspx before using the .NET Framework Cleanup Tool.

Step #3 => Check-in at Windows Update and install any critical security updates offered.

~Robear Dyer (PA Bear) ~ MS MVP (IE, Mail, Security, Windows & Update Services) since 2002 ~ Disclaimer: MS MVPs neither represent nor work for Microsoft
    • Child exploitation or abuse
    • Harassment or threats
    • Inappropriate/Adult content
    • Nudity
    • Profanity
    • Software piracy
    • SPAM/Advertising
    • Virus/Spyware/Malware danger
    • Other Term of Use or Code of Conduct violation

PA Bear MS MVP

PA Bear MS MVP MVP
Community Star
~Robear Dyer (PA Bear)
MS MVP-Windows Client (IE, Mail, Security & Update Services) since 2002

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Try leaving your computer as idle as possible before running the .NET update. So quit as many applications running in the notification area (on the task-bar) that you can afford.

Good luck!
And be patient with these crazy people. (Microsoft Windows)
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Mowse

Mowse

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