I am having problems with. i am having problems with any new usb products such as new printers,

Question

i am having problems with any new usb products such as new printers, micro sd card readers etc.. have tried the same device in other computer wuth no problems. Ive looked through some of the info on the microsoft web site and i seem to have the relevent usb 2.0 but i still cant seem to get it to work.