My unity gives me gray screen

Built from ‘5.5/staging’ branch; Version is ‘5.5.0b6 (e398e763a5a6) revision 14915815’; Using compiler version ‘160040219’
OS: ‘Windows 10 (10.0.0) 64bit’ Language: ‘ja’ Physical Memory: 8112 MB
BatchMode: 0, IsHumanControllingUs: 1, StartBugReporterOnCrash: 1, Is64bit: 1, IsPro: 0
Initialize mono
Mono path[0] = ‘C:/Program Files/Unity 5.5.0b6/Editor/Data/Managed’
Mono path[1] = ‘C:/Program Files/Unity 5.5.0b6/Editor/Data/Mono/lib/mono/2.0’
Mono path[2] = ‘C:/Program Files/Unity 5.5.0b6/Editor/Data/UnityScript’
Mono config path = ‘C:/Program Files/Unity 5.5.0b6/Editor/Data/Mono/etc’
Using monoOptions --debugger-agent=transport=dt_socket,embedding=1,defer=y,address=
ListPackages failed, output:
Error parsing output of npm ls

(Filename: C:\buildslave\unity\build\Editor/Src/JavascriptPackageManager.cpp Line: 153)

InstallEditorPackages failed, output: 
installJavascriptPackages failed
(Filename: C:\buildslave\unity\build\Runtime/Utilities/Argv.cpp Line: 171)

Error loading file:///C%3A%2FUsers%2FnekonekoGryphus%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: 51)

What I have tried so far is just reinstalling, I posted this hoping that someone will help me while I’m also looking for solution to this issue

My system is windows 10 64bit

This problem seems to occur more often these days, the Unity installer must have a serious problem somewhere.

Possible solution: