Removable devices not recognized and shown in my pc?

I'm using windows 8.1 in 64 bit lenovo G500.
my hard disk is not recognising any CD/DVD but when i insert one the front panel LED will blink
and can hear the sound of its rotation then abruptly it stops.
i noticed that there's no removable devices list in my PC! Its not showing up…
Only 3 drives comprising of my 500GB Storage nothing more than that…

I ran a diagonastic tool, some hardware devicse are not recognised may be due to the upper and lower filters.
i tried to remove filters manually. But there's neither upper nor lower filters in the list…

i tried sfcscan through command prompt and find out that some files are corrupt but the can't remove it automatically.
then i have to check sfc details but i cand find the sfcdetails.txt file any where in the system.

kindly give me some suggestions for the same…

Check the bios settings. In the boot section you will see your drives. Example drive 1-5 and will look something like this:
1: 500gb blahblah
2: another500
3: usb flash
4: LAN
5:______
just make sure cd/dvd is on one of them. If its there, try reconnecting its cables. If problem persists your cd drive could be faulty