[解決済み] .NET Framework 4 マルチターゲティングパックがアンインストールできない

質問

現在、インストールしようとしているのは Atmel Studio 6.2 と .NET Visual Studio Isolated Shell 10.0をインストールする際に、問題が発生しました。

Atmel Studioをインストールしようとすると、.NET Framework 4をインストールしようとし、すぐに結果のログが表示されて失敗します。

[08/26/14,07:57:20] .NET Framework 4 Multi-Targeting Pack: [2] Error: Installation failed for component .NET Framework 4 Multi-Targeting Pack. MSI returned error code 1612
[08/26/14,07:57:21] VS70pgui: [2] DepCheck indicates .NET Framework 4 Multi-Targeting Pack is not installed.
[08/26/14,07:57:21] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 Shell (Isolated) - ENU was not attempted to be installed.
[08/26/14,07:57:21] VS70pgui: [2] DepCheck indicates Microsoft SQL Server System CLR Types was not attempted to be installed.
[08/26/14,07:57:21] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 Management Objects was not attempted to be installed.
[08/26/14,07:57:21] VS70pgui: [2] DepCheck indicates Microsoft Help Viewer 1.0 x64 was not attempted to be installed.
[08/26/14,07:57:21] VS70pgui: [2] CFinishPage::UpdateFinal(): Could not find the readme.htm in the client directory as expected!
[08/26/14,08:01:54] .NET Framework 4 Multi-Targeting Pack: [2] Error: Installation failed for component .NET Framework 4 Multi-Targeting Pack. MSI returned error code 1612
[08/26/14,08:01:55] VS70pgui: [2] DepCheck indicates .NET Framework 4 Multi-Targeting Pack is not installed.
[08/26/14,08:01:55] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 Shell (Isolated) - ENU was not attempted to be installed.
[08/26/14,08:01:55] VS70pgui: [2] DepCheck indicates Microsoft SQL Server System CLR Types was not attempted to be installed.
[08/26/14,08:01:55] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 Management Objects was not attempted to be installed.
[08/26/14,08:01:55] VS70pgui: [2] DepCheck indicates Microsoft Help Viewer 1.0 x64 was not attempted to be installed.
[08/26/14,08:01:55] VS70pgui: [2] CFinishPage::UpdateFinal(): Could not find the readme.htm in the client directory as expected!
[08/26/14,08:08:30] .NET Framework 4 Multi-Targeting Pack: [2] Error: Installation failed for component .NET Framework 4 Multi-Targeting Pack. MSI returned error code 1612
[08/26/14,08:08:31] VS70pgui: [2] DepCheck indicates .NET Framework 4 Multi-Targeting Pack is not installed.
[08/26/14,08:08:31] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 Shell (Isolated) - ENU was not attempted to be installed.
[08/26/14,08:08:31] VS70pgui: [2] DepCheck indicates Microsoft SQL Server System CLR Types was not attempted to be installed.
[08/26/14,08:08:31] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 Management Objects was not attempted to be installed.
[08/26/14,08:08:32] VS70pgui: [2] DepCheck indicates Microsoft Help Viewer 1.0 x64 was not attempted to be installed.
[08/26/14,08:08:32] VS70pgui: [2] CFinishPage::UpdateFinal(): Could not find the readme.htm in the client directory as expected!
[08/26/14,09:16:38] .NET Framework 4 Multi-Targeting Pack: [2] Error: Installation failed for component .NET Framework 4 Multi-Targeting Pack. MSI returned error code 1612
[08/26/14,09:16:38] VS70pgui: [2] DepCheck indicates .NET Framework 4 Multi-Targeting Pack is not installed.
[08/26/14,09:16:38] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 Shell (Isolated) - ENU was not attempted to be installed.
[08/26/14,09:16:38] VS70pgui: [2] DepCheck indicates Microsoft SQL Server System CLR Types was not attempted to be installed.
[08/26/14,09:16:38] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 Management Objects was not attempted to be installed.
[08/26/14,09:16:38] VS70pgui: [2] DepCheck indicates Microsoft Help Viewer 1.0 x64 was not attempted to be installed.
[08/26/14,09:16:39] VS70pgui: [2] CFinishPage::UpdateFinal(): Could not find the readme.htm in the client directory as expected!
[08/26/14,12:42:39] .NET Framework 4 Multi-Targeting Pack: [2] Error: Installation failed for component .NET Framework 4 Multi-Targeting Pack. MSI returned error code 1612
[08/26/14,12:42:39] VS70pgui: [2] DepCheck indicates .NET Framework 4 Multi-Targeting Pack is not installed.
[08/26/14,12:42:39] VS70pgui: [2] DepCheck indicates Microsoft Visual Studio 2010 Shell (Isolated) - ENU was not attempted to be installed.
[08/26/14,12:42:39] VS70pgui: [2] DepCheck indicates Microsoft SQL Server System CLR Types was not attempted to be installed.
[08/26/14,12:42:39] VS70pgui: [2] DepCheck indicates Microsoft SQL Server 2008 R2 Management Objects was not attempted to be installed.
[08/26/14,12:42:39] VS70pgui: [2] DepCheck indicates Microsoft Help Viewer 1.0 x64 was not attempted to be installed.
[08/26/14,12:42:39] VS70pgui: [2] CFinishPage::UpdateFinal(): Could not find the readme.htm in the client directory as expected!

まず最初に、.NET Framework 4 のアンインストール/再インストールを試みました。アンインストールしようとすると、次のようなエラーが表示されます。

The path 'C:\UsersMyUser³³appdata³³local³³temp³³sit31981.tmp³wcu³³mtpack³³NetFx_DTP.msi' cannot be found. この場所にアクセスできることを確認して再試行するか、製品Microsoft .NET Framework 4 Multi-Targeting Packをインストールできるフォルダーでインストールパッケージ'NetFx_DTP.msi'が見つかるか試してみてください。

このファイルを見つけようと、パソコンの中を探してみたのですが、うまくいきません。また、'NetFx_DTP.msi'というファイル自体も探してみましたが、こちらも見つかりませんでした。

もし、どなたか解決するためのヒントをお持ちの方がいらっしゃいましたら、ぜひ教えてください。ありがとうございます。

解決方法は？

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