Microsoft KB Archive/940057

= Some programs that use virtual device drivers no longer work after you upgrade a computer to Windows Vista or after you perform a Windows Anytime Upgrade in Windows Vista =

Article ID: 940057

Article Last Modified on 11/26/2007

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APPLIES TO


 * Windows Vista Home Basic 64-bit Edition
 * Windows Vista Home Premium 64-bit Edition
 * Windows Vista Business 64-bit Edition
 * Windows Vista Enterprise 64-bit Edition
 * Windows Vista Ultimate 64-bit Edition
 * Windows Vista Starter
 * Windows Vista Home Basic
 * Windows Vista Home Premium
 * Windows Vista Business
 * Windows Vista Enterprise
 * Windows Vista Ultimate

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SYMPTOMS
After you upgrade a computer to Windows Vista or after you perform a Windows Anytime Upgrade in Windows Vista, some programs that use virtual device drivers no longer work.



CAUSE
This issue occurs because the virtual device drivers do not have corresponding physical hardware. Therefore, some virtual device drivers are not installed during the upgrade.



WORKAROUND
To work around this issue, reinstall the programs or the virtual device drivers after the upgrade.

Keywords: kbtshoot kbprb kbexpertiseinter KB940057

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