What is the operating system of a samsung tablet s2?

SOURCE: replace hard drive but can't load tablet operating system

I bouht one used and had no tablet pc restore discs, but my 40 GB hard drive was full of programs. I cloned the drive with operating system reimaged my 160 GB hard drive with the image. You need to use partition software to repartition the new drive to " see" the larger drive with free space. This can be done before or afte. I did it after because i had to go thru trial and error acouple of times due to no real concrete info on the web.