Nexus 5 nothing bootable? I add Paranoid OTA on my Nexus 5, and I tried to uninstall it.

During the processus, everything totally failed and my phone start rebooting itself all the time.

Now :

ADB is not working. (I tried to end and restart the server but nothing to do) My phone is not recognize on my computer (windows 8.1) I can't install the driver on my computer

And i CANNOT start my phone, I don't have any more any system on it ...

I'm totally lost and I don't know what to do =/

i'm trying to install ADB to install Android 4.4.4 but impossible, my phone is connect to my computer but windows doesn't recognize it (and i uninstall and reinstall the driver with the package manager from android studio)

Someone can help me =/ ?
I know Windows doesn't recognize the phone but I still want to try something.
Download Wugfresh toolkit from here: (For download links just scroll down, there are some mirrors) 

http://www.wugfresh.com/nrt/

Once you install it, click "Full driver installation guide...". This will give you a thorough guide to uninstalling remaining drivers and installing the needed ones.

Hopefully, it will help you install the necessary drivers for the N5.
If it does work, Press the "flash stock + unroot" button on the right (I think you should check "soft-bricked/bootloop").

Hope it helps :)