original title: Windows Update keeps failing when trying to update .NET 3.5
Got the following Installation Failure message starting around January 10 or so.
Windows failed to install the following update with error 0x80070643: Security Update for Microsoft .NET Framework 3.5 SP1 on Windows XP, Windows Server 2003, Windows Vista, Windows Server 2008 x86 (KB2416473).
Went to support.microsoft.com/kb/910339 and tried MS Fix It tool. It said it fixed Update but the Update still failed.
Tried support.microsoft.com/kb/910339 .NET repair solution and removed .NET Framwork 3.5, Now get the following message in th Event Viewer.
Product: Microsoft .NET Framework 3.5 SP1 -- Error 25541.Failed to open XML file C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\CONFIG\web_mediumtrust.config, system error: -2147024786.
Windows Update keeps trying to install .NET Framework 3.5 repeatedly.
I have Windows XP with SP3.