S4 to PC connection fail.

[Ben Floris Robberecht]

I5, 16GB Ram, USB3.
I have the S4's USB Debug on.
Updated KIES from 2.5 to 3.
Updated KIES 3 again.
Driver installation failed???
Windows Update gave a S4 update, installed correctly... still no connection.

I am at a loss here.
And yes, I do have the original S4 cable, which I use.

 

[Rukbat]

Remove the existing driver, reboot and install SAMSUNG_USB_Driver_for_Mobile_Phones.

 

[Ben Floris Robberecht]

Thank you, let's give this one a shot.

Most kind, good Sir.

Downloader software with a ton of AdWare!
Refused to run it.

Other options please?