2.0

Hi, I have 4 USB ports (2 X 3.0) (2 X 2.0) in my case, the thing is that I put usb 2.0 on 3.0 port before without problem but now I do. Now, I can put 3.0 usb on 2.0 port but not 2.0 on 3.0 port.

Hi there, I'm trying to uninstall a program because it continuously freezes my laptop, but it is unable because it claims it's still running. According to task manager, all programs are closed, but I'm still unable to. The program is mp navigator ex 2.0 for a canon scanner. My question is what...