Revision to AMD K6-2/350 Central Processing Unit Update

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This article was previously published under Q234259

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SYMPTOMS

If you have installed the AMD-K6-2 Update (Amdk6upd.exe) on a computer running Microsoft Windows 95 OEM Service Release 2, 2.1, and you are using Microsoft Backup to back up data to certain models of floppy disk drives, you may receive the following error messages:

Warning: Tape needs to be erased before operation can proceed.

Microsoft Backup unable to read from the disk or network drive. Quit and restart Backup, and then try again.

Warning: This operation has been canceled by the system.

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CAUSE

The version of Vfbackup.vxd (4.00.1112) installed by the original AMD-K6-2 Update does not incorporate the changes to Vfbackup.vxd to alleviate the problem described above.

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RESOLUTION

The AMD-K6-2 Update has been revised to incorporate a newer version of Vfbackup.vxd.

The English version of the revised update installs a Vfbackup.vxd file with the following file attributes:

   Date      Time    Version      Size          File name
   ---------------------------------------------------------
   05/25/99  11:14am 4.00.1114    18,197 bytes  Vfbackup.vxd

The English version of the original update installs a Vfbackup.vxd file with the following file attributes:

   Date      Time    Version      Size         File name
   --------------------------------------------------------
   01/15/97  11:12am  4.00.1112   18,197 bytes Vfbackup.vxd

File information is placed in the registry by both the original and current update in the registry keys noted below. A QfeCheck tool that has the ability to detect and list this information is also installed.

Note that the revised update removes and replaces the registry information placed there by the original update. The '(default)' values shown below are the visible update titles shown by the QfeCheck tool.

Revised Update:

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\Updates\990602N1

(default): "AMD-K6-2 Update"

Original update (the current update deletes this information):

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Setup\Updates\980911N1

(default): "AMD K6 Update"

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STATUS

Microsoft has confirmed that this is a problem in Windows 95 OEM Service Release 2, 2.1, and 2.5 with the AMD-K6-2 Update installed.

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MORE INFORMATION

For additional information about the availability of the AMD-K6-2 Update, please see the following article in the Microsoft Knowledge Base:

192841 (http://support.microsoft.com/kb/192841/EN-US/ ) Difficulties Using AMD K6-2 or Athlon Central Processing Unit

For additional information about the Backup error messages described in this article, please see the following article in the Microsoft Knowledge Base:

159153 (http://support.microsoft.com/kb/159153/EN-US/ ) Error Messages While Backing Up to Some Floppy Disk Drives

For additional information about the QfeCheck tool, please see the following article in the Microsoft Knowledge Base:

161020 (http://support.microsoft.com/kb/161020/EN-US/ ) Implementing Windows 95 Updates

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APPLIES TO

Microsoft Windows 95

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kbhotfixserver kbqfe kbprb kbqfe KB234259

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Retired KB Content Disclaimer

This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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