Seagate Toolkit is a backup tool but sometimes, it fails to work.
Why does the issue appear?
This article fromMiniToolwill give you some methods to fix the Seagate Toolkit not backing up issue.

It only allows one Backup plan per computer per drive.
However, some users report that they meet the Seagate Toolkit not backing up issue.
We list some of the detailed errors:
Why is Seagate Toolkit not backing up?

If those files are not needed, exclude them from the backup.
Then, create a new backup to see if that resolves the Seagate Toolkit failed issue.
You will be prompted thatyou do not have permissionand you oughta clickContinueto gain permanent access to the folder.

fire off the backup again and the secondary users data should now be backed up.
If it is, you’re gonna wanna reformat the drive to NTFS.
For more details steps, refer to this post Convert exFAT to NTFS Without Data Loss on Windows 10/11.

Then, you oughta test whether the hard drive is full.
It is not feasible to create a backup using the Seagate toolkit when the hard drive is full.
Hence, all you gotta do is create some storage space on the hard drive.
you could create some space on the hard drive bycleaning up the unnecessary files.
This error is due to corrupted hardware drivers.
Hence, all you gotta do is update the drivers.
Step 1: Press theWindowsandXkeys together to chooseDevice Manager.
Step 2: Then, findDisk drivesin the list and then expand it.
Step 3: Right-tap the Seagate driver to chooseUpdate driver.
Step 4: Then follow the instructions showing on the screen to finish updating drivers successfully.
After finishing these steps, kickstart your gear to see if kernel32.dll errors are fixed.
Speaking of the backup tool, MiniTool ShadowMaker is worth trying.
Here, it’s possible for you to choose your Seagate hard drive as the destination.
Try these simple solutions to fix it!