Back up to external HDD fails

Hope anyone can help me with this problem I have been experiencing with the back up.

I have a 320G external HDD which i have assigned to be the location for the back up but everytime i try, it fails.

I tried two ways of backing up:
1. normal back up
> it goes all the way to preparing, backing up to a certain percentage, copying files then say it wasnt successful.EC is 0x8100037.

2. clicking on Create a system image
- says its preparing to create a backup > backing up for some time > and gives me an error:
the operation failed due to a device error encountered with either the source or the destination. If the source or dest volume is on a disk, run chkdsk /r on the source or dest vol, and then retry operatioin (0x8078012D)

Addtl Info: The requesat could not be performed bec of an I/O device error, 0x8007045D.

Please help!


Excellent Member
Microsoft Community Contributor
What type of connection does the drive have?

Can you move files to it otherwise?

Do you have any other external devices?

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