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Can I safely delete latest Incr file?

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I just upgraded to Win 10 1809 and cloned my old backup task to create a new 1809-only chain of partitions backups.  Prior to the upgrade I ran a final backup of my 1803 system.  Following the upgrade unintentionally I manually invoked the old, rather than new, backup task.  Nothing is actually wrong with that, but I'd rather the old task's backups be just of my 1803 system. 

Can I just delete the new Incr file?  I know AAP will complain, but I can cope.  I know that the ATI database will no longer match the actual backup chain, but I'm not sure what damage, if any, that will cause.   If I have to do a recovery I will use an ATI recovery media so the out-of-sync database is not critical, but I might want to mount that final 1803 backup to extract individual files.

I'm currently running the intended new backup, by the way.  I will not delete the unintended Incr file until I have a good backup of my current system. 

 

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Patrick, you should be able to delete the latest / last incremental backup file but if you still have the task for this showing in the ATI GUI, then run a Validation for the task after doing the deletion.  You could try using the new backup cleanup versions option in the ATI GUI which would take care of any interference from AAP but don't think that this would necessarily cleanup the database when removing a single incremental file (based on trying this with differential files!).

The Cleanup tool did the job but I followed it with a Verify, just in case.

Thank yu for your help.