dear ITD members help me. mary computer may problemyeh hai k jab my ko usb flash apnay computer k usb slot may dalta hoon to wo my computer may show nahi hota. computer uss ko detect to kar latha hai lakin uss ko my computer may show nahi karta. may usb ko tamam usb slots per check kia hai kissi b slot say show nahi hota. wahi usb may nay dosray computer par try kia to teek tak kam kar hai. may jab external hardisk connect karta hoon to uss ko show karata hai. may nay iss ko Disk mangment may check kia to uss may srif cd drive show hota hai. hardisk be show nahi hota. plz help me.