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ITsVISTA KB-Link: KB2562433

The TimezonekeyName registry entry value changes to a null value in Windows Vista, in Windows Server 2008, in Windows 7 or in Windows Server 2008 R2

Assume that you run a Windows Management Instrumentation (WMI) command to set a value in the Win32_ComputerSystem?WMI class on a computer that is running one of the following operating systems:

  • Windows Vista
  • Windows Server 2008
  • Windows 7
  • Windows Server 2008 R2

For example, you use administrative credentials to run the following command:
Wmic computersystem where name=”%computername%” set AutomaticManagedPagefile=False
In this situation, the value of the TimezonekeyName registry entry is changed to a null value.

Note: The TimezonekeyName registry entry is located in the following registry subkey:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\TimeZoneInformation

There is a download that resolves this issue. See Hotfixes for details.
32-bit Download: Contact Microsoft
64-Bit Download: Contact Microsoft

For more information on this issue, including potential causes, workarounds, and resolutions, see: Microsoft KB Article KB2562433.

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