I tried to install the Picoscope on my computer at work.
When i plug the Picoscope i get the following message:
"No suitable device was found...".
The driver is installed, but i can not find it in the device manager.
The system freezes at reboot.
At home everything is all right with the software and i can see changes in the device manager, when i plug the picoscope in.
I do not know what libusb0.sys is from but I would suggest looking on the web. If there any traces of that development board software then remove it (if you don't need it ofcourse) and see if the problem persists.
The device should only be using picopp.sys. Try using a powered USB hub and plug in the scope into it. When the hardware wizzard comes up select to "Install from a specific location (Advanced)" then browse the driver and search for the picopp.inf on c:\WINDOWS\inf\. then continue with the installation.