Failed Install Microsoft .NET Framework 3.5 Service Pack 1 and .NET Framework 3.5 Family Update (KB951847) x86

Question

Hi not sure if i posted in right area ( sorry if not)

Have been trying to install Failed Install Microsoft .NET Framework 3.5 Service Pack 1 and .NET Framework 3.5 Family Update (KB951847) x86 for a while now i keep getting the error code 800B0100. I have tried various step to install but no luck as of yet. I have ran the clean up other things people have recommended but none of them have helped. Here is what my  CheckSUR log says.

=================================
Checking System Update Readiness.
Binary Version 6.0.6002.22441
Package Version 9.0
2010-09-20 18:10

Checking Windows Servicing Packages

Checking Package Manifests and Catalogs

Checking Package Watchlist

Checking Component Watchlist

Checking Packages
(f) CBS MUM Missing 0x00000002 servicing\Packages\ws4-update-MiniLP~31bf3856ad364e35~x86~en-US~7.0.6001.16503.mum  
(f) CBS MUM Missing 0x00000002 servicing\Packages\ws4-update-TopLevel~31bf3856ad364e35~x86~~7.0.6001.16503.mum  
(f) CBS MUM Missing 0x00000002 servicing\Packages\ws4-update~31bf3856ad364e35~x86~en-US~7.0.6001.16503.mum  
(f) CBS MUM Missing 0x00000002 servicing\Packages\ws4-update~31bf3856ad364e35~x86~~7.0.6001.16503.mum  

Checking Component Store

Summary:
Seconds executed: 1812
 Found 4 errors
  CBS MUM Missing Total count: 4

Unavailable repair files:
 servicing\packages\ws4-update-MiniLP~31bf3856ad364e35~x86~en-US~7.0.6001.16503.mum
 servicing\packages\ws4-update-TopLevel~31bf3856ad364e35~x86~~7.0.6001.16503.mum
 servicing\packages\ws4-update~31bf3856ad364e35~x86~en-US~7.0.6001.16503.mum
 servicing\packages\ws4-update~31bf3856ad364e35~x86~~7.0.6001.16503.mum
 servicing\packages\ws4-update-MiniLP~31bf3856ad364e35~x86~en-US~7.0.6001.16503.cat
 servicing\packages\ws4-update-TopLevel~31bf3856ad364e35~x86~~7.0.6001.16503.cat
 servicing\packages\ws4-update~31bf3856ad364e35~x86~en-US~7.0.6001.16503.cat
 servicing\packages\ws4-update~31bf3856ad364e35~x86~~7.0.6001.16503.cat

Thanks in Advance :) x

Answer 1

What version of Windows are you running? That information is essential to useful answers.

Different Windows versions install different frameworks as components:

If you're running Windows Vista, you can upgrade Windows Vista SP1 to Windows Vista SP2 which will ship .NET Framework 3.0 SP2.

I copied the chart above from an answer by Yichun Chen.

If you are running XP, you should use the excellent tools provided by Aaron Stebner:

http://blogs.msdn.com/b/astebner/archive/2008/10/13/8999004.aspx

http://blogs.msdn.com/b/astebner/archive/2008/08/28/8904493.aspx