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I can't get a full drive backup. I've tried multiple settings.

First I tried to backup all files:

It kept failing, presumably because I was using the computer during the backup. So, i finally just backed up only the 50+ GB of images (which was my major focus) successfully, WIN! Then I went back to the task of backing up the entire C: drive. I noticed that you could just do "Newer", which I decided would allow my backup to continue from where it failed.

So, next I tried:

Still didn't work, but at least it didn't re-backup files already backed up. After deleting several files that were causing it to fail (had to go to the command line for these, because windows could not delete/recognize/open them) I again tried the backup. This time it failed on UsrClass.dat (see the actual error below):

Create date/time : 2/5/2010--8:06:21 AM
Error Report of Backup from [C:] to [Z:\Backup_Drive_C]

C:\Documents and Settings\Christopher\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat
The process cannot access the file because it is being used by another process.

I thought, hrm... Maybe I'll just run it again. Nope. Still failed. Ran again, still failed. Ok, so I'm going to have to actually do something about the file.

I *almost* tried switching to another product, again, but then I realized this would be my fourth product switch and maybe I should at least give Sabrent tech support a try. So I submitted the following help request through their website:

1. Purchased Sabrent SATA 3.5"/2.5" Hard Drive to USB 2.0 Docking Station.
2. Installed one click backup software
3. Placed newly formatted/partitioned empty drive in dock
4. Began backup of C: drive to drive in dock (Z:)

Expected Result:
Full Backup of C: Drive to Z: drive

Actual Result:
Failed after ~20,000 files with the following error:
Create date/time : 2/5/2010--8:06:21 AM
Error Report of Backup from [C:] to [Z:\Backup_Drive_C]

C:\Documents and Settings\Christopher\Local Settings\Application Data\Microsoft\Windows\UsrClass.dat
The process cannot access the file because it is being used by another process.

http://screencast.com/t/N2E3YjdkYz

We'll see how they respond. If I can't get this to work, the next thing I'm going to try is some sort of Open Source drive duplication or backup solution that will let me copy from one drive to another. If that still doesn't work, I'll start looking at commercial, local backup options.