Build web MVC on visual studio error Process with an ID #### is not running.

First Error

For the first error:

Process with an ID #### is not running.

The following steps worked for me:

1. Close all instances of Visual Studio.
2. Rename the IISExpress folder (in my PC is in C:\Users\jmelosegui\Documents).
3. Add the _CSRUN_DISABLE_WORKAROUNDS Environment System variable with the value of 1.
4. Start Visual Studio in administrator mode. (In Windows, right click the executable file and select Run as administrator).

Second Error

The second error:

The webpage is not available

What caused this error:

I deleted IIS Express Development Certificate while playing with the SSL.

The following steps worked for me:

1. Go to Control Panel.
2. Select Add/Remove Programs.
3. Locate IIS 8.0 Express.
4. Right click on it then click Repair.
5. Your certificate should be back!

Hope this helps!