Warning: there is a hardware constellation with entirely absent protection without any warning by RVS. This is the case when you use eSATA-drives (e.g., because they are significantly faster than external USB-disks), which register before your internal disk(s). Then RVS writes through onto the system disk, though it tells this disk is protected, if any disk constellation during boot differs from the one during program installation. So the program is safe solely if the number of eSATA drives is not altered after installation. RVS 2009 showed a similar behavior with eSATA disks but at least informed about the loss of protection. I had informed the developers of this during ß-testing, but the issue is still valid, as I saw recently, when I installed the final version of the program again.