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Microsoft backup program fails at 4 Gigabytes under Windows XP SP3

  • Homebuilt
  • Backup
  • Microsoft
  • Windows XP
  • Systems
Last response: in Systems
May 6, 2010 7:57:12 PM

Initially I could not get the backup program to work at all, and then I ran regsvr32 ole32.dll which apparently reset the parameters to allow backup to run, however, when it reached 4 Gigabytes after a full system backup had been specified, the program stopped with the report results below this message.

The backup was going to a 400 GB WD Passport drive with 231 GB free space (formatted FAT32) from a 300 GB drive (ST3320613AS), 80 GB used/120 GB free (formatted NTFS).

Can the standard File Explorer backup program be used to backup the entire system with this configuration?

Any help or ideas are most welcome - especially before I have to go buy a program to do what seems like ought to be built in from the get-go...


Richard Holliday

Backup Status
Operation: Backup
Active backup destination: File
Media name: "Backup.bkf created 5/6/2010 at 7:59 PM"

Backup (via shadow copy) of "C: "
Backup set #1 on media #1
Backup description: "Set created 5/6/2010 at 7:59 PM"
Media name: "Backup.bkf created 5/6/2010 at 7:59 PM"

Backup Type: Normal

Backup started on 5/6/2010 at 8:06 PM.
End of Media encountered while backing up to non-removable media.
The operation was ended.
Backup completed on 5/6/2010 at 9:05 PM.
Directories: 942
Files: 14219
Bytes: 4,283,239,161
Time: 16 minutes and 10 seconds


The operation did not successfully complete.

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a b B Homebuilt system
May 6, 2010 8:54:36 PM

No brainer ...

NTFS supports file sizes above 4GB ... FAT 32 does not.

What you want is an external NTFS drive ... as your BU destination.

= Al =
May 6, 2010 9:45:04 PM

Thanks Al, I'll reformat one of my USB drives to the NTFS and give it a go!