Can a usb cord mess up a computer?

Answer No, a USB cable will not harm a computer.

Top Q&A For: Can a usb cord mess up a computer

If I unplug cable cord between wall & modem & switch to longer cord, will it mess anything up?

You should not have any problems. If you do reboot, both your modem and pc and it will fix all. Good luck

My computer is messed up from some virus, shouldnt it be against the law for someone to mess up my computer?

It is against the law... The problem is in finding the criminals...

Can your computer mess up if it has a lot of dust in the CPU?

Yeah it makes cpu overheat, you can clean it with airduster.

Does limewire mess up or slow down you computer?

limewire is not bad just use it with care . it well slow it down when downloading just turn it off when not in use