Help me how can recover data of my hard drive he error is i o device error
First thing is to ensure that all cables are firmly connected (both ends) by unplugging then replugging. If this doesn't change the errors then replace the IDE/SATA cable and try again. If after all that it still doesn't work then you may just have a failed drive and recovery of data will be niether easy nor inexpensive. Hope you had a backup.
Let be check first if you have a backup of your data on your system or not , then try to connect your drive to other system if not work then the only solution is to use data recovery services available online.Kernel for windows data recovery tool may me much helpful for you to recover all your corrupted data. To know more visit:www.freedatarecoverysoftware.org