After running the .NET Framework Cleanup Tool, 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.
Known issues and additional information about this security update
For more information about installation issues this security update or with the Microsoft .NET Framework 1.1 Service Pack 1, click the following article number to view the article in the Microsoft Knowledge Base:
2431728 Encrypted content in ASP.NET is not decrypted for a website that is deployed in a web farm 2431208 An update for the Microsoft .NET Framework may fail to install when the Microsoft .NET Framework 4 is installed and a restart is pending 923100 When you try to install an update for the .NET Framework 1.0, 1.1, 2.0, 3.0, or 3.5, you may receive Windows Update error code "0x643" or Windows Installer error code "1603" 938244 The file version is rolled back to the version that was installed by the last service pack when you remove an update for the .NET Framework 1.0, the .NET Framework 1.1, Visual
Studio .NET 2002 or Visual Studio .NET 2003 2197103 A known issue when you try to install an update on a computer that does not have the Microsoft .NET Framework 1.1 Service Pack 1 installed
923101 Error message when you try to install a security update for the .NET Framework 2.0 on a computer that is running Windows Server 2003 x64 Edition: "Error 1324. The folder
'Program Files' contains an invalid character" 2260913 Files in use or File Locks can Result in Framework Assembly Files being Deleted 2263996 Patching of Microsoft Framework can fail with Access is denied or File in Use error
Kaylene Horne / TaurArian [MVP] 2005-2011. The information has been provided *as is* with no warranties or guarantees.
No warranties or guarantees. MVP 1st July 2005- 30th June 2016 WIMVP 1st July 2016- 30th June 2017
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