Over the years I've used a number of unformatting tools & it seems capacity will forever outpace increases in drive speed. Which means...it could easily take days, possibly a week.
EaseUS, TestDrive...others...I've found they all essentially do the same thing, scanning & rescanning each individual bit, rebuilding possible file tables as they go. And all take about as long, too. Recova and Wise are my favorites.
I would not expect a fully functioning system once you are done; typically what you end up with are nearly all of your files recovered but not necessarily a working OS. Think of what you get as being more like a bucket of pages instead of a book. The data is there but you can't read it end to end. You'll still need to reformat, put on an OS and then figure out how you need to use the files you recovered and (hopefully) stored off elsewhere.
_________________
“For small creatures such as we the vastness is bearable only through love.”
―Carl Sagan
30 Jun 2016, 3:48 pm
