Device Manager of PC has got a solution for you. If you Google the right information, you will find the driver right a single click away. All you need is right information for that device.
Right click at My Computer
Click Properties -> Hardware -> Device manager
See which device has a question sign there
Question sign shows that the driver for that device is not installed.
Right click that device -> Properties -> Details
In details tab there will be ‘Device Instance Id’
Below that selection there will be another portion containing the right driver info.
It will be something like;
PCIVEN_8086&DEV_2930&SUBSYS_50448086&REV_023&61A AA01&0&FB
In the above line ‘VEN’ stands for vender.
Just copy that whole line and Google it.
You will find the right driver to download for that device.
DONT FORGET TO SAY THNKS!!!