Haha, this says it all:
Zinstall "Your new computer will feel just like the old one."
Another embarrassing, desperation driven cheap shot/attack belying perspective.
Obviously, when I chose to employ Windows Easy Transfer to migrate as much as i could form my now backup desktop running W7 32-bit, to this new, much faster system running W7 64-bit, I had to delete the windows.old file.
Someone employing the apps in question would do the same and related things. But, in any event, barrel bottom scraping via the word "feels" is just that.
Using these apps to move to a faster system form a slower one will not compromise the speed of the new system.
When I sent my client the link he ended up using.....I FIRST sent him links to freewares to clean up his original system, defrag it, etc., and then spent time with him on the phone while he ran them. The cleaner and leaner the original system, the better the result.
Goal is to connect, get and honor the reality of The Other, offer options as a colleague in a common endeavor. DOING CLEAN INSTALLS IS NOT RIGHT FOR EVERYONE.
Were it, these apps would not be making money. And these apps are used in Enterprise, including re server migration.
I chose to migrate as I did for specific reasons, not arbitrary. My client in CA chose what he did after I delineated many options and he weighed each. My choice worked for me; his choice worked for him.
Anyone free of some festering personal agenda will see this simple phenomenon clearly.