Rx unable to find free check point?

Today at boot (just after or just before Rx attempted to take its boot snap ---- no snap was taken) I received a message that read

"Unable to find free check point."

I hit enter and the PC appeared to load normally. There is plenty of free space for Rx snaps indicted on the Rx main window. Does anyone know what this means and what I should do about it?

 

Just rebooted and the correct message was

"Failed to find free checkpoint"

I am unable to create new snapshots. If I try to do a manual snap I get a message that the snap has been created but it does not appear in the snap history.

 

I h used this ware before, during the install it takes a first Boot snapshot. i h forgot about this checkpoint u mention here.
one word of advice, i used this ware before, n did successful restore ,but during the uninstallation, u'll could face some problem, cause i did. If u r using v8.1 then better remove it quikly, it has some bug issues. Better dload v9 , i heard it has fixed these bugs,,,,but i m better off without this RX. u should use any normal Back-up program, imo.......its the best

 

The listed free space 52535 MB is related to which drive, C or D? Perhaps the other drive does not have enough free space to store an additional snapshot.

 

I have no idea which drive it refers to. Are the snaps stored on separate drives? I was under the impression that the snaps are stored as one file in a designated location. The D drive contains nothing that I am aware of.

 

Now that you mention it, I remember reading somewhere that the snapshots are all stored on the first partition. I did not use rollback to protect two partitions during the 1 month I tried it so I may be in error. I am sure someone more experienced with rollback rx can solve this for you.

So the total space, used space and free space listed in the image corresponds to your C partition only?

Keep in mind that if there were snapshots stored on D drive they will not be visible to windows explorer.

 

Understood.