Question about Microsoft Windows Vista Home Premium for PC
Everytime I try to update Security Update for Microsoft .NET Framework 4 on XP, Server 2003, Vista, Server 2008 x86 (KB2861188) it fails with error code 643.
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Posted on Jan 02, 2017
1. Before doing anything else, write down the .NET Framework versions which
are already installed:
How to determine which versions of the .NET Framework are installed and
whether service packs have been applied
2. Now see Resolution Method 2 in http://support.microsoft.com/kb/923100
(ignore the title). After running the appropriate/needed tool, (re)install
all .NET Framework versions manually using the download links on the page.
Posted on May 28, 2010
SOURCE: Error code 643
Try this for starters:
Basically, it involves un-installing .NET Framework Version 1.1 Service pack
Then download and use (Run as Administrator) the Windows Installer CleanUp
Utility, and remove all references to .NET Framework Version 1.1 Service
pack 1 (only!).
Then reinstall .NET Framework Version 1.1 Service pack 1:
Then run Windows Update again, to install KB929729.
Posted on Jun 25, 2010
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