So when I plugged in my mouse the system message says that these USB ports can't be used and now nothing works
Let the mouse get infected and reboot. Sometimes that helps.
Does this happen with other USB devices? Z.b with a USB stick?
Yes, but thanks again
Okgreade again failed unfortunately only a mouse because the system warning comes USB port 1 can't be used disconnect the USB device from. This USB port
Then it may be the mouse.
Maybe the USB port is dead or the USB plug plugged into the RJ45 LAN port? Try a different USB port.