I was recently having that common issue where the Launcher will keep 'Initializing...' a Project and fail to load the Sandbox Editor. After I installed Visual Studio 2017 (and I installed the works when it comes to C++ support, even the Linux module) it appears to work fine. Is Visual Studio a requirement? I didn't see it listed anywhere, only the 2015 VC++ Redistributable

Hi
The same happened to me, but I didn't install visual studio to solve it. I just turned off fire wall and windows defender.

Hi
The same happened to me, but I didn't install visual studio to solve it. I just turned off fire wall and windows defender.

Well Its not working for me

Hi
The same happened to me, but I didn't install visual studio to solve it. I just turned off fire wall and windows defender.

Well Its not working for me

Try running the launcher as admin.

You could try this;

Create a new windows administrator account
Turn off UAC
Disable any firewall or antivrius (some anti virus may require you to restart without it enabled)
Run the launcher installer as admin

If you have a fairly aggressive anti virus you may want to try in safe mode with networking. If it will allow you to install under those conditions.

If you still have problems and the FAQ doesn't help you try mailing support at cryengine dot com.

good luck hope you manage to get it working.
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If all else fails you can quite easily follow the beginner guide in my signature to use the github engine instead of the launcher engine. Just skip the first section. (You will be missing sandbox though, so only very good if you want to start coding or "modding").