New
#11
This can't be right...
Anytime you use a boot CD to image an offline system (without running from it), it doesn't matter if that system is 64-bit or not, or even if it's Windows or something completely different.
As for Macrium, there are good reasons why it's one of the recommendations on this forum. It works very reliably - I'm not sure why you're dead set against installing a simple imaging app or why you feel that it's "somehow flaky." That's not a rational approach and you need to provide more details as to why you feel it's not doing the job.