My Microsoft Visual Studio Community 2017 was hanging on startup.
Solution
I reset the user data and it worked fine.
Step 01.
Open "Developer Command Prompt for VS 2017"
Step 02.
Navigate to the following location
C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE
By typing
cd "C:\Program Files (x86)\Microsoft Visual Studio 14.0\Common7\IDE"
Step 03.
Run the below command
devenv.exe /ResetUserData