Thank you @Riku for the software. It was an ease to use! But if it's possible to implement a %-bar? Since people might think it locks when it's working.
There's a lot of stuff involved in process, such as hash calculations etc. It's not 'simple' to make proper and accurate progress bar here and I'm afraid multithreading may affect overall performance. Besides, current version is somewhat whitelisted by antiviruses. Every time I push new update it causes people getting alerts from antiviruses for some time.