You won't eb able to access the files on your computer after this and the only way to get it back is by paying the ransom.
Once the malicious encryption is finished, the program will throw up a Notepad document that contains the ransom note. The malicious files start encrypting the files on your Windows system in the background, without letting you have any idea about it. Once the extension is installed, the program is executed in the background and the inevitable happens.
