Cd drive not reading disk

Click start control panel administration tools computer management device manager scroll down cd-dvd rom drives you might see a yellow question /exclamation mark ? ! or a red X right click to update driver

You might have to physically unplug the leads for this cd/dvd computer then plug them back in restart your this should activate the found new hardware wizard.

If this does not fix the problem it might be a registry problem

"you only need to do the following"

if you cant see your disk drive in windows explorer


Close all open programs
Click on Start, Run, and typeregedit and press Enter
Click on the plus signs (+) next to the following folders
HKEY_LOCAL_MACHINE
SYSTEM
CurrentControlSet
Control
Class
{4D36E965-E325-11CE-BFC1-08002BE10318}
This folder is the DVD/CD-ROM Drive Class Description in the registry. Look for any of the following names in the right hand column.
Upper Filters
Lower Filters
Upper Filters.bak
Lower Filters.bak
If any of the above keys shown in step 4 are listed, right-click on them and choose Delete

After deleting the keys, close the registry editor
Reboot your computerOpen My Computer and check to see if your CD or DVD drives have returned.
You may also want to open Device Manager and verify that the yellow exclamation and error code on the CD or DVD drive is gone.

if this fails to fix the problem It could be a problem with the lens you could use a liquid type lens cleaner place 2-3 drops on top of a cd/dvd then run it

http://www.nextag.com/dvd-lens-cleaner/shop-html

http://www.infopackets.com/news/hardware/2005/20050315_clean_cd_or_dvd_rom_lens_with_a_brush_part_2.htm