Beware of a backup restore problem on new PCs with Win8 pre-installed.

Have you been able to create a backup using Macrium Reflect on the XPS8500 ?
if so how ?... Mine won't do it !

Disabling secure mode won't cause an issue. I had to do this when Win 8 did an update and the PC wouldn't boot. Once it had re booted a couple of times I could re enable secure boot and it's fine.