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Backups Will Not Validate "Invalid Archive URI"

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Backups will not validate. I have set up two identical tasks, one with validation after a full backup and one without. The one with validation fails every time. I have tried re-creating the task and the archive still no luck. I am backing up to external USB hard drives and this issue seems to occur on all backup drives.

This started several months ago, I went ahead and updated to the latest build. That did not resolve the issue.

I have also pulled an AcronisInfo file.

Any tips or help would be greatly appreciated. Thanks in advance.

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Do the images validate when using the rescue CD?

Are you able to mount and or explore the image?

If it has validated in the past and suddenly stopped validating, then an update to some other software or Windows itself might have caused a problem.

If you have the space, does the image validate if the image is on an internal drive?

Does this only happen on full backups?

Is this a disk or files image?

Its a full disk image of two different volumes. OS and Program volumes.
I am able to open the image files and browse through the contents. I'm working from remote so I don't have a Rescue CD.

Perhaps I should change the task and just try one volume at a time to see if that makes a difference? That way i could try an internal backup too.
Thanks for the tips.

When you say you're working remotely, does that mean you are trying to validate over a network or via Windows Remote Desktop?

Remote Desktop, Im going to schedule a validated full backup of the C drive tonight to the D drive. Thanks

I am having the exact same problem backing up to a USB external drive on a Wondows 2003 server. I can validate the backup using a separate Validate task, but when the validation is included as part of the Backup task (by creating a full backup task and then tell it to validate after a full backup), it fails every time. See attached jpg for screen shot of the error.

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Please post the screenshot of this backup plan's parameters on its 'edit backup plan' page

I had to split screen shots to get it all.
FYI - When I first open the edit screen it makes me re-enter credentials. Also, the USB drive is a shared external drive on another server. It all was working great with the old version of Acronis.

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Validation-after-backup of 'latest backup' seems to fail if archive is named in Echo style.
I tried to create file backup of a small folder, to local vault, using echo naming style, scheme: backup now, type - full, validate after full, incremental, validate 'the latest backup'. Backup was created, validation failed with 'invalid uri' error. Setting validation to 'entire archive' seems to work. Or not using Echo style.