Ralston, thank you very much for your reply,
I'll check the USB inputs, and truth,
the manual will help me a lot.
Thank you very much, after the tests, I'll post a reply.
Windows 10 installed 11/28/2016
No problems reported
No error code
Reinstalled drivers, all ok.
USB PORTS ARE DEAD.
Thanks for the reply.
Any other suggestions?
Lenovo ThinkPad L520 USB ports and camera does not work.
Device Manager shows all drivers Ok.
The 4 ports are inactive
Windows 10 installed on notebook
Help me please