You may receive a "Stop 0x0000007E" error message after you enable the BitLocker Drive Encryption feature in Windows Vista

View products that this article applies to.

SYMPTOMS

After you enable the BitLocker Drive Encryption feature in Windows Vista, you may receive a "Stop 0x0000007E" error message that resembles the following:

STOP 0x0000007E (parameter1, parameter2, parameter3, parameter4)
SYSTEM_THREAD_EXCEPTION_NOT_HANDLED

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CAUSE

The problem may occur when certain drivers, such as a chipset driver, are installed on the computer before you enable the BitLocker Drive Encryption feature.

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RESOLUTION

Service pack information

To resolve this problem, obtain the latest service pack for Windows Vista. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

935791 (http://support.microsoft.com/kb/935791/ ) How to obtain the latest Windows Vista service pack

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Hotfix information

To resolve this issue, install the hotfix that is described in KB 929637.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

929637 (http://support.microsoft.com/kb/929637/ ) Error message during Windows Vista startup if the Nero InCD program is installed and if the "Special pool" feature is enabled in the Driver Verifier utility: "Stop 00000050"

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STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Windows Vista Service Pack 1.

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