All of my usb ports are not working. when i insert the pen drive the computer ha

Try reloading the chipset from the manufacturer's support site. Reloading/refreshing the chipset can occasionally jump start the USB controllers.

*I edited out your e-mail addy. It's never a good idea to post it on any forum, as you open yourself up to spam attacks, malware, etc...

All of your USB ports, including the one one the back panel of the motherboard?

Smells like the chipset software for the motherboard is fubar, reinstall.