To decrypt files:

1. Open and extract the WildfireDecryptor.zip archive, using an archiver (for example, 7zip).
2. Double click the left mouse button at WildfireDecryptor.exe.

3. In the User Account Control (UAC) window, enter the password with the administrator permissions and click OK.
4. In the Kaspersky WildfireDecryptor window, specify the folders with the files to scan: click the Change parameters link.

5. In the Settings window, Objects to scan section, select the drives to scan. To remove encrypted files after the scan, select the corresponding check box in the Additional options section.
6. Click OK.

7. In the Kaspersky WildfireDecryptor  window, click Start scan.

8. In the Specify the path to one of encrypted files select a folder for the file. Click Open.
9. To view information about the scan task, click Details. 
10. To view the history of performed scans, in the upper right corner of the Kaspersky WildfireDecryptor window, click Report.