Unity 5.3 Grey Screen - Doesn't Open

I installed the latest version of Unity and when I try to open it the luncher shows me a grey empty screen. Here’s the log file:

LICENSE SYSTEM [201662 12:20:7] No start/stop license dates set

LICENSE SYSTEM [201662 12:20:7] Next license update check is after 2016-05-26T13:52:48

Built from ‘5.3/release’ branch; Version is ‘5.3.5f1 (960ebf59018a) revision 9834175’; Using compiler version ‘160040219’
OS: ‘Windows 7 Service Pack 1 (6.1.7601)’ Language: ‘el’ Physical Memory: 2047 MB
BatchMode: 0, IsHumanControllingUs: 1, StartBugReporterOnCrash: 1, Is64bit: 0, IsPro: 0
Initialize mono
Mono path[0] = ‘C:/Program Files/Unity/Editor/Data/Managed’
Mono path[1] = ‘C:/Program Files/Unity/Editor/Data/Mono/lib/mono/2.0’
Mono path[2] = ‘C:/Program Files/Unity/Editor/Data/UnityScript’
Mono config path = ‘C:/Program Files/Unity/Editor/Data/Mono/etc’
Using monoOptions --debugger-agent=transport=dt_socket,embedding=1,defer=y,address=
ListPackages failed, output:
InstallEditorPackages failed, output:
installJavascriptPackages failed

(Filename: C:/buildslave/unity/build/Runtime/Utilities/Argv.cpp Line: 168)

Error loading file:///C%3A%2FUsers%2F%CE%A3%CF%84%CE%AD%CF%86%CE%B1%CE%BD%CE%BF%CF%82%2FAppData%2FRoaming%2FUnity%2FPackages%2Fnode_modules%2Funity-editor-home%2Fdist/index.html#/project/recent

(Filename: C:/buildslave/unity/build/Editor/Platform/Interface/NativeWebViewWindow.cpp Line: 50)

What should I do?

Hi @gdv, There may have been an error with the install. Could you try reinstalling. The installer is now module so be sure to check the appropriate boxes on install. Check this 1 for more information.