in howto windows disk cloning ~ read.

The best free and reliable cloning tool

IMHO the best free tool to clone whole disk or few partitions is Clonezilla.

PROS

  • it's free and open source
  • it supports many file systems
  • it's reliable - i didn't have any issues with it
  • it can clone disk with bad sectors and you can boot it (tested on broken windows disk)

CONS

  • it's free and open source - It could be a problem for somebody
  • choosing right options could be tricky

In most cases you can use `Beginner mode` and click next, next... like in windows :P. Ofc you need to choose correct source and destination disk :) The problem is, when you would like to clone bigger disk to smaller one. `Beginner mode` won't allow you to do so. Luckily there is also `Expert mode`, where you can choose correct flags. Remember, that your data needs to fit in smaller disk, so you won't be able to put full 512 gb disk in 256 gb :).

Besides standard options you should choose: -rescue in case of bad sectors, -icds - in case of smaller destination disk, -v for more info.

Screenshot below:
clonezilla_options
The next best option would be leaving default setting, like on screenshot:
clonezilla_options2
Last step is important - you need to choose -k1 for resizing partition table:
clonezilla_options3

And that's all. After few confirmations the process will start.