NTBACKUP Error: C: is not a valid drive, or you do not have access.

Active backup destination: File
Media name: "Full Backup.bkf created 4/7/2009 at 3:03 AM"

Volume shadow copy creation: Attempt 1.
Backup (via shadow copy) of "C: "
Backup set #1 on media #1
Backup description: "Set created 4/7/2009 at 3:03 AM"
Media name: "Full Backup.bkf created 4/7/2009 at 3:03 AM"

Backup Type: Normal

Backup started on 4/7/2009 at 3:05 AM.

Error: The device reported an error on a request to write data to media.
Error reported: Unknown error.
There may be a hardware or media problem.
Please check the system event log for relevant failures.
The operation was ended.
Backup completed on 4/7/2009 at 3:29 AM.
Directories: 4047
Files: 13408
Bytes: 2,808,704,437
Time:  12 minutes and  46 seconds

Error: C: is not a valid drive, or you do not have access.

The operation was ended.
Backup completed on 4/7/2009 at 3:29 AM.
Directories: 4047
Files: 13408
Bytes: 2,808,704,437
Time:  12 minutes and  46 seconds

----------------------

The operation did not successfully complete.

The backup is to a USB drive over a network.

What are my options.  I've read about having startup files interfere, so here' s a screen of msconfig

http://i42.tinypic.com/k3lj46.jpg



VSS service is set to Local Account.

This is a Windows Server 2003 SP2 with most if not latest windows updates.

Backup usually goes for about 10-15 minutes before its halted.

Is this fixable?
k3lj46.jpg
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Anti-MhzAsked:
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Anti-MhzConnect With a Mentor Author Commented:
i did backup to a non usb drive and it went smooth.
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itprotocallCommented:
most of the time such errors are seen due to issues with VSS. Do you have all the latest VSS updates installed?

check for any specific VSS errors in the event viewer logs.
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Anti-MhzAuthor Commented:
no specific vss errors in the even log

The version of dll files on the computer supercede those available in A Volume Shadow Copy Service (VSS) update-2 package'

itprotocall, were u reffering to a different vss update?
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Anti-MhzAuthor Commented:
i got ahold of package 3 , installed and restarted.

ntbackup still failed with same error message
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