How to Enable Updates for .NET Framework 1.1?

Solution summary

If you are looking for the complete solution to enable the updates for the installation of ‘.NET Framework 1.1 Service Pack 1 Update’ and the error message, “Updates were unable to be successfully installed. The following updates were not installed: Microsoft .NET Framework 1.1 Service Pack 1” is displayed, then follow the easy 4-step resolution and the task of performing your updates would be completed.

Each step is accompanied by an indicative screenshot for ease of mirroring the action.

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Step 1

Manually remove the .NET Framework

To resolve this issue, use the following methods. Use each method in turn. If a method does not solve the problem, go to the next method.

Click ‘Start’ > click ‘Run’ > type ‘appwiz.cpl’ > click ‘OK’.

In the list of currently installed programs, click Microsoft .NET Framework 1.1, and then click ‘Change/Remove’ > Click ‘Yes’ to remove the .NET Framework 1.1. > In the list of currently installed programs, click ‘Microsoft .NET Framework 2.0’, and then click ‘Change/Remove’.

Step 3

Reinstall the .NET Framework
Visit the following Microsoft® Website:
http://www.microsoft.com/downloads/details.aspx?FamilyID=262d25e3-f589-4842-8157-034d1e7cf3a3&displaylang=en
Follow the instructions on the website to download and to install the .NET Framework 1.1. If the computer uses the .NET Framework 2.0, install the .NET Framework 2.0. To do this, follow these steps:

Visit the following Microsoft® website:
http://www.microsoft.com/downloads/details.aspx?FamilyID=0856EACB-4362-4B0D-8EDD-AAB15C5E04F5&displaylang=en

Follow the instructions on the website to download and to install the .NET Framework 2.0
Install the .NET Framework 1.1 SP1 Update and all other .NET Framework updates. To do this, follow these steps:
Visit the following Microsoft®website:
http://windowsupdate.microsoft.com
Click ‘Express’.

Click ‘Install Updates’.

You have performed a successful uninstall and reinstall of .NET Service Pack 1 and updates thereof too. Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Modify the registry at your own risk. We recommend you to do it under the supervision of a professional.

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