Microsoft KB Archive/159153

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Error Messages While Backing Up to Some Floppy Disk Drives

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Q159153

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The information in this article applies to:


 * Microsoft Windows 95
 * Microsoft Windows 95 OEM Service Release, versions 1.0, 2.0, 2.1, 2.5

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SYMPTOMS
When 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.

CAUSE
Some models of floppy disk drives require specific timing and delays between disk operations to work properly. The timing implemented by the Windows 95 floppy disk driver is not sufficient for some of these drives.

RESOLUTION
A supported fix for Windows 95 and OEM Service Release 2 that corrects this problem is now available from Microsoft, but has not been fully regression tested and should be applied only to computers experiencing this specific problem. To resolve this problem immediately, contact Microsoft Technical Support to obtain the fix.

For a complete list of Microsoft Technical Support phone numbers and information on support costs, please go to the following address on the World Wide Web:

"http://support.microsoft.com/directory/overview.asp" This fix for Windows 95 and OEM Service Release 1 should have the following file attributes (or later):

  File name     Version    Date      Time     Size -  HSFLOP.PDR    4.00.1112  1/13/97   1:09pm   24,737 bytes IOS.VXD      4.00.1112  12/4/96   7:05pm   68,962 bytes INT13.VXD    4.00.1112  9/12/96   1:26pm   9,955 bytes VFBACKUP.VXD 4.00.1112  9/26/96   2:14pm   18,197 bytes CDFS.VXD     4.00.951   12/31/96  4:15pm   58,644 bytes DISKTSD.VXD  4.00.953   12/4/96   7:17pm   18,714 bytes This fix for Windows 95 OEM Service Release 2, 2.1, and 2.5 should have the following file attributes (or later):

  File name     Version    Date      Time     Size -  HSFLOP.PDR    4.00.1112  1/13/97   1:09pm   24,737 bytes IOS.VXD      4.00.1112  12/4/96   7:05pm   68,962 bytes INT13.VXD    4.00.1112  9/12/96   1:26pm   9,955 bytes VFBACKUP.VXD 4.00.1112  9/26/96   2:14pm   18,197 bytes CDFS.VXD     4.00.1112  12/31/96  4:12pm   59,153 bytes DISKTSD.VXD  4.00.1112  12/4/96   7:09pm   18,809 bytes

STATUS
Microsoft has confirmed this to be a problem in Microsoft Windows 95 and OEM Service Release 2 (OSR2).

This issue is resolved in Microsoft Windows 98.

MORE INFORMATION
There are two separate timing issues known to relate to this symptom:


 * Some floppy disk drives require a specific minimum delay time after a Write operation, before a Step operation can occur.


 * Some floppy disk drives require a specific minimum head-settling time between a Seek and subsequent Write operation.

In each of these cases, the delay required by the drive is greater than the Windows 95 floppy disk driver implements.

For additional information about an issue related to this update, please see the following article in the Microsoft Knowledge Base:

"Q183720 MacDrive 95 and 98 Are Unable to Read Macintosh Formatted Disks" For additional information about Windows 95 updates, please see the following article in the Microsoft Knowledge Base:

"Q161020 Implementing Windows 95 Updates" Please see the following article in the Microsoft Knowledge Base concerning a problem that can occur if the update described in this article is installed:

"Q197104 Error Message If Laptop Is Ejected While Copying to Floppy Disk" Keywords : kberrmsg kbhw kbpolicy osr1 osr2 win95

Issue type : kbprb

Technology : kbWin95search kbOPKSearch kbWin95 kbWin95OPKOSR25 kbWin95OPKOSR210