Unity 4.3.0 Freezes when I want to close it

Unity Engine
1

Since the update to 4.3.0, many times when I want to close Unity it freezes and I must to force the close with the Task Manager.

somebody have this problem too?.

2

I do :neutral:

Windows 7 x64,
Unity 4.3.0f4

3

Me too.

Windows 8.1 64bit,
Unity 4.3.0f4

4

There’s also a thread on this problem here, with a solution that works for some:

http://forum.unity3d.com/threads/210746-4-3-Freezing-when-I-try-to-quit-the-editor