i have Acronis® True Image Home® version 10.0 (build 4,871) i intially created a secure zone but that didn't work for me because when it came time to make an incremental i was asked to increase SZ size to no end. no matter how much i increased the size it would ask for more space. i decided to backup to an external drive. reading threads around here i am now confused about what's simplest. all i want is to make one full backup and from there on make an incremental or differential backup every week or so such that i only need the full backup and one smaller backup file to restore. i don't want umpteen differetials or whatever. is this possible? thx for your suggestions and help!