Some times after installing Microsoft Windows XP, it doesn't recognize your DVD-ROM or CD-ROM. To resolve this problem do following;
1- Click Start Menu > Run > type "regedit" and press OK to open Windows Registry Editor.
2- Go to following Address:
H_L_M\System\CurrentControlSet\Control\Class\{3d36e965-e325-11ce-bfc1-08002be10318}
3- In Registry menu select "Export Registry File" to make a Backup from your registry entry.4- If there is "UpperFilters" or " LowerFilters" keys, delete them.
5- Close Windows Registry Editor and reset your Computer.
6- Go to Control Panel > click System > go to HardWare tab and click on Device Manager button.
7- In Device Manager list, click on Device marked with "?" , from Action Menu select Uninstall and press ok to uninstall device.
8- From Action menu select "Scan for hardware changes" to Scan your system and install DVD-ROM or CD-ROM.
















