（１）
リリースノート
http://download.microsoft.com/download/1/b/e/1be78474-c7f8-427a-8c6c-330e1c5db7d5/dotNet35SP1Readme.htm
から
Windows 2000, XP, 2003, の場合には
http://www.microsoft.com/downloads/details.aspx?displaylang=ja&FamilyID=0BA6038C-061E-4B4A-9BE9-96A323701260
（２）
Problem signature:
Problem Event Name: VisualStudio8Setup
Problem Signature 01: 35101
Problem Signature 02: 3.5.30729.01_ORCAS_X86_NET
Problem Signature 03: CBS
Problem Signature 04: INST
Problem Signature 05: F
Problem Signature 06: gencomp750,{61040379-156d-4ece-b126-ea395a3b2
Problem Signature 07: BASERET_UNKNOWN
Problem Signature 08: -
Problem Signature 09: 1058
Problem Signature 10: WUSA
こんなログが出ている場合には
http://blogs.msdn.com/astebner/archive/2007/12/04/6659905.aspx
から
http://astebner.sts.winisp.net/Tools/dotnetfx_cleanup_tool.zip
（３）
イベントログに
Log Name: Application
Source: ESENT
Date: 7/2/2008 3:05:16 PM
Event ID: 491
Task Category: General
Level: Error
Keywords: Classic
User: N/A
Computer: anantdevpc2.redmond.corp.microsoft.com
Description:
Catalog Database (1560) Catalog Database: An attempt to determine the minimum I/O
block size for the volume "C:\" containing "C:\Windows\system32\CatRoot2\" failed
with system error 5 (0x00000005): "Access is denied. ". The operation will fail
with error -1032 (0xfffffbf8).
こんなのが出ていたら
http://blogs.msdn.com/joy/archive/2008/09/11/net-framework-3-5-sp1-fails-to-install.aspx
どれかで解決できるといいのですが・・・