On windows eb cannot be placed in a directory with spaces

**1. Please specify the following:**
- OS: Windows
- Shell (Bash, PowerShell, Zsh, etc.): Powershell

- [X ] **I have reviewed the troubleshooting tips described [here]() and they do not solve my problem**

**2. Description**
After installation a eb.ps1 file ends up in C:\Users\ because on windows usernames can contain spaces and some long gone sysadmin thought that was actually a good idea I ended up with a space in my username at my workplace.
Anyway by modifying eb.ps1 it now works:

```
c:\Users\A9DA8~1.BRU\.ebcli-virtual-env\Scripts\activate.ps1
c:\Users\A9DA8~1.BRU\.ebcli-virtual-env\Scripts\eb $args
deactivate

```
As you can see I used the old dos shortname instead of the generated long name which is causing problems:
```
c:\Users\My Name\.ebcli-virtual-env\Scripts\activate.ps1
c:\Users\My Name\.ebcli-virtual-env\Scripts\eb $args
deactivate
```

Start by locating the code that generates eb.ps1 and the installer path for .ebcli-virtual-env. Reproduce the installation on Windows PowerShell with a username containing spaces, then verify the generated script runs without manual edits and still activates, invokes eb, and deactivates the environment.

Written by the indexing model from the issue text.