手動卸載步驟：
Visual Studio Express Editions
進入控制面板,運行添加或刪除程序
卸載 "MSDN Library for Visual Studio 2005Beta"
卸載 "Microsoft SQL Server 2005 ExpressEdition"
卸載 "Microsoft SQL Server 2005 Tools ExpressEdition"
卸載 "Microsoft SQL Native Client"
卸載 "DMA Transport Update for VS 2005 Beta2"
卸載 "Microsoft MSDN Express Library 2005Beta"
卸載所有 Microsoft Visual Studio Express Editions (比如 Visual C# 2005Express Edition Beta)
卸載 "Microsoft Visual Studio 2005 Remote Debugger Light" (如果您的VisualStudio被安裝在64位的機器上，則需要執行此步驟)
卸載 "Microsoft Visual J# .NET Redistributable 2.0 Beta LanguagePack" (如果您只有英文版，則不需要此步驟)
卸載 "Microsoft Visual J# .NET Redistributable Package 2.0Beta"
確認所有Visual Studio 2005產品已經從您的系統中卸載
卸載 "Microsoft .NET Framework 2.0 Beta Language Pack"(如果您只有英文版，則不需要此步驟)
卸載 "Microsoft .NET Framework 2.0 Beta"
安裝Visual Studio 2005 Express版或您需要的其它版本
Visual Studio 2005
進入控制面板,運行添加或刪除程序
卸載 "MSDN Library for Visual Studio 2005Beta"
卸載 "Microsoft SQL Server 2005 ExpressEdition"
卸載 "Microsoft SQL Server 2005 Tools ExpressEdition"
卸載 "Microsoft SQL Native Client"
卸載 "Microsoft Visual Studio 64bit Prerequisites Beta" (如果您的VisualStudio被安裝在64位的機器上，則需要執行此步驟)
卸載 "Microsoft Visual Studio Tools for Office System 2005 RuntimeLanguage Pack" (如果您只有英文版，則不需要此步驟)
卸載 "Microsoft Visual Studio Tools for Office System 2005 RuntimeBeta"
卸載 "DMA Transport Update for VS 2005 Beta2"
卸載 "Microsoft Device Emulator 1.0 Beta"
卸載 "Microsoft .NET Compact Framework 2.0Beta"
卸載 "Microsoft .NET Compact Framework1.0"
卸載 "Microsoft Visual Studio 2005 Professional" or other related IDEinstalls (比如 Visual Studio Professional/Standard/EnterpriseArchitect/Team Suite, 等等)
卸載 "Microsoft Document Explorer 2005 Language Pack"(如果您只有英文版，則不需要此步驟)
卸載 "Microsoft Document Explorer 2005"(Beta2之后的版本需要此步驟)
卸載 "Microsoft SQL Mobile 2005 DevelopmentTools"
卸載 "Microsoft 64-bit SDK" (如果您的VisualStudio被安裝在64位的機器上，則需要執行此步驟)
卸載 "Microsoft Visual Studio 2005 Remote Debugger (x64)" (如果您的VisualStudio被安裝在64位的機器上，則需要執行此步驟)
卸載 "Microsoft MDAC 2.8 SP1" (如果您運行在Windows2000的操作系統上，則需要執行此步驟)
卸載 "Microsoft MSXML 6 SDK and Parser"
卸載 "Microsoft Visual J# .NET Redistributable 2.0 Beta LanguagePack" (如果您只有英文版，則不需要此步驟)
卸載 "Microsoft Visual J# Redistributable Package 2.0Beta"
確認所有Visual Studio 2005產品已經從您的系統中卸載
卸載 "Microsoft .NET Framework 2.0 Beta Language pack"(如果您只有英文版，則不需要此步驟)
卸載 "Microsoft .NET Framework 2.0 Beta"
“完全卸載vs2008”
大致有兩個版本，現將兩個版本轉載過來，建議卸載時對照兩個版本進行卸載，有備無患嘛~
版本一：
Remove "MSDN Library for VisualStudio 2008 Beta"
Remove "Microsoft SQL Server Compact Edition3.5"
Remove "Microsoft SQL Server Compact Edition 3.5 DesignTools"
Remove "Microsoft SQL Server Compact Edition 3.5 forDevices"
Remove "Microsoft Visual Studio Performance CollectionTools"
Remove "Windows Mobile 5.0 SDK R2 for PocketPC"
Remove "Windows Mobile 5.0 SDK R2 forSmartphone"
Remove "Crystal Reports 2007"
Remove "Visual Studio Asset System"
Remove "Microsoft Visual Studio Web Authoring Component / MicrosoftWeb Designer Tools"
Remove "Microsoft Visual Studio 2005 Tools for the 2007 MicrosoftOffice System Runtime"
Remove "Microsoft Visual Studio 2005 Tools for the 2007 MicrosoftOffice System Runtime Language Pack" (non-English editionsonly)
Remove "Microsoft Visual Studio Tools for Office Runtime3.0"
Remove "Microsoft Document Explorer"
Remove "Microsoft Document Explorer 2005 Language Pack"(non-English editions only)
Remove "Microsoft Device Emulator 3.0"
Remove "Microsoft .NET Compact Framework3.5"
Remove "Microsoft .NET Compact Framework 2.0SP1"
Remove ".NET Framework 2.0 SDK"
Remove "Microsoft Visual Studio Codename Orcas RemoteDebugger"
Remove "Microsoft Visual Studio 64bit Prerequisites Beta" (64-bitplatforms only)
Remove "Microsoft .NET Framework 3.5"
版本二：
將控制面板添加刪除程序中帶有以下字樣的全部卸載。
帶*的，說明帶這個字符的不只一個項目。如果帶有語言包先刪語言包，如果帶有有SP先刪SP！
Microsoft Visual Studio2008
Microsoft Document Explorer 2008 *
Microsoft Device Emulator 3.0版
Visual Studio Tools for the Office system 3.0 Runtime *
Microsoft SQL Server ***
Microsoft Windows SDK for Visual Studio 2008 ***
windows Mobile 5.0 **
Microsoft .NET Framework 3.5 *
如果裝了MSDN，也要收到刪掉。
文章轉載於：http://blog.csdn.net/trassion/article/details/7662473