need some help. my computer's model is inspiron 14r 5421 with windows 8.1 x64
my computer Intel USB 3.0 eXtensible Host Controller 0100(Microsoft) does not work anymore. so i used windows troubleshoot to solve the problem, however when i went back to device manager "Intel USB 3.0 eXtensible Host Controller " no longer exist.
so i downloaded the diver software which is called "USB 3.0 Driver: Intel® USB 3.0 eXtensible Host Controller Driver for Intel® 7 Series/C216 Chipset Family". but when i ran the software it showed that " this computer does not meet the minimum requirements for installing the software".
so what is the problem ? what should i do?
really need some help!