A compulsory registration for a backup software? That's all about not at all times. Had to crash my computer also the message "number reaches maximal activation" Support could not help. Sorry guys, if I ever have to re-set up my system and angry (angry enough) me then about such messages, I have gained little. That's a No. Sure, you can use the CD boot. But who wants to be updated sometime sometimes and this needs to be registered. Nee Acronis, I'm off ..... O & O DiskImage is the program for me from now on. So I've no problems (even with RAID or SSD disks) .Treiber (if necessary) can be integrated without any problems in DiskImage, right up my alley = ;-))