CobianSoft

The program will keep the directory structure so I don't see any easy solution to this problem.

If the drive is not present when it's time to delete, then it won't be accessible and won't be deleted.

In this page there I list all the changes in every verision

https://www.cobiansoft.com/crhistory.html

You can begin reading from the bottom.

Agreed with both.

If the backup is compressed, select 7zip instead of zip.

Just add the Hibernate option to a post-backup event for the last task of your backup.

Think its better to find the cause of the error. Do you have some kind of exotic firewall or antivirus installed?

Budet realizovanno na 3tej versii.

The history is used to count the current number of backups since the last one. If for some reason a backup was empty (without files) or something else happened, then this number method will not give the expected results. Solution: use one FIXED day for full backups in your options.

Yes, but it is dangerous if used as backup. A hammer is not dangerous, when it's expected to be used to hammer nails.