I have been BoxCryptor user quite a long time now, I even purchased Unlimited version.
Today I updated to version 18.104.22.168 and after reboot BoxCryptor not respond anything, BoxCryptor lock is open in System Tray, and it does not respond anything (not show any menus, not bring GUI on top). And I noticed that some programs do not load at all (for example Opera, it is loading sometime, and then nothing).
BoxCryptor cannot kill via taskmanager and if I try to uninstall it, it says BoxCryptor is already run in System Tray. Luckily I got it away.
Back to 1.2.
Windows 7, not any other security software than MSE.