Follow these easy steps to fix Rainbow Six Siege from not launching.

- Start up Bitdefender


- Go to "protection" screen
- Go to "Advanced Threat Defense" screen


- Go to "manage exceptions"
- click on "add exception"


- at the top part of this screen enter the following:
X:\Program Files (x86)\Steam\steamapps\common\Tom Clancy's Rainbow Six Siege\RainbowSix.exe
- swap "X" with the drive on which Steam is installed
- Make sure all 3 options are selected to be on. "Antivirus", "Online Threat Prevention" and "Advanced Threat Defense".


- after that click "Add Exception"
- after that click "OK"
- now it should all work!

- You may also need to add Battleye to Bitdefender exceptions: Basicly do the same steps but add:
D:\Program Files (x86)\Steam\steamapps\common\Tom Clancy's Rainbow Six Siege\BattlEye\BEService_x64.exe

If it doesn't work you can manually search for "RainbowSix.exe". Just simply instead of copy pasting my line and replace X with the drive your Steam is installed on you simply manually search for Steam install folder. Use below images to see how. If you still can't get it to work now it's a different kind of problem and I would advice reinstalling Uplay and Battleye. Both installers should be in the folder Rainbow Six Siege is installed on.

Go the the drive you think Steam is installed on. Most of the times it is C or D drive.


Go to Steam folder / Steamapps / Common


Scroll down to Tom Clansy's Rainbow Six Siege folder


Select "RainbowSix.exe"



If after this guide you still can't get R6 to work, you basicly need someone with at least a little PC knowledge to fix the problem. So ask your grandma, grandpa, parents or Bill Gates.


Another side note, Bitdefender can sometimes remove the exception rule made for some reason. Meaning you need to follow these steps 1 more time. It can also happen when Ubisoft brings a new update to Siege. So whenever you run into these problems, follow this guide again to fix it.

If you don't have Bitdefender Total Security, you probably don't have Advanced Threat Defense.
What you should do then is add rules simular to this guide for Antivirus and Firewall instead.

I know there are some other problems with Siege not launching so try these following fixes:

- Update your videocard driver
https://www.nvidia.com/Download/index.aspx for Nvidea
https://www.amd.com/en/support for AMD drivers

- Update your Windows system with latest updates

- Try to reinstall/update vc-redist C++ drivers
https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads

- try to reinstall Uplay
https://uplay.ubisoft.com/en-GB

- Try reinstall Battleye from your local Rainbow Six Siege Folder
"X:\Program Files (x86)\Steam\steamapps\common\Tom Clancy's Rainbow Six Siege\BattlEye"
And run "Install_BattlEye.bat"