Many players have reported this problem. All the files from our website are 100% safe to download, we take great care in selecting and scanning the files before putting it up on our website.
Here is a scan result by google (click to enlarge it)-
The antivirus quarantines the game files mistaking it for a malware. The DRMs used in the game causes this to happen. To counter this-
1) You can add the file to your antivirus' excluded list/ white list/ trusted list.
2) If you go in the 'quarantine' option of the antivirus, the game should be listed there. If you click on it you should be given the option to restore the file.
3) If nothing is allowing the game to run, turn off the antivirus. Once the download and installation is complete, turn it on again.
If any other player has any different fix to this problem which has worked for you, please feel free to post it here and help the other players. Your guidance is much appreciated.