Event 1001 is logged on every boot on Windows Server 2008 Service Pack 2 or on Windows Vista Service Pack 2

Source: Microsoft Support

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After upgrading a Windows Vista SP1 or a Windows Server 2008 SP1 to SP2, event 1001 is logged in the System event log on every boot:

Log Name: System
Source: Microsoft-Windows-LanguagePackSetup
Date: date time
Event ID: 1001
Task Category: Language Pack Setup Wizard functionality
Level: Error
Keywords:
User: SYSTEM
Computer: computer_name
Description:
Application initialization failed. Last error: 0x80070032

This error is logged if the system that is upgraded has several language packs installed and the SP2 upgrade package does not contain the updates for all of the languages installed.

This error can be safely ignored.

You can check which languages are installed.

1. Click Clock, Language and Region in Control Panel, click Region and Languages, and then click the Keyboards and Languages tab.
2. Click Install/uninstall languages.
3. Click Uninstall display languages.

In the list, you can see the languages currently installed on your OS.

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