Win7 cannot identify optical drive fault resolution

Win7 cannot identify optical drive fault resolution 1. Click Start, Type Device Manager in the search box, and click Device Manager ". 2. Right-click the drive name and select uninstall (if the DVD/CD-ROM drive is not in the list, you need to re-check the set power or drive cable ). 3. When the confirmation window appears, click "OK. The drive name should be removed from the List (if you have only one CD/DVD drive installed, the category of the DVD/CD-ROM drive will also be deleted ). 4. Click "operation" in "Device Manager" and select "Scan detection hardware changes". Then, wait for the latest windows XP system to download home Windows and find and install the CD/DVD drive. The optical drive name can appear in the Device Manager. Reset the computer power in some cases, the optical drive may be disconnected from Windows, even after Windows is restarted. To restart the optical drive, select "start" from the "power" menu, and then select "close" to completely shut down the computer. Shut down the computer for five seconds and then restart the computer. Solve the problem of "Device Manager" error code 10, 19, 31, 32, 39 or 41. 1. Click "start" and type "regedit" in the "Search" field ". 2. If the computer prompts you to enter the administrator password or confirm the information, follow the prompts. Open Registry Editor and select computer in the main window ". 3. Click "file" and "Export", type a file name that is easy to remember, and click "save. The registration file copy has been saved to the "document" folder. If the problem persists after performing these steps, locate and double-click the file to restore the registry. 4. Click the current arrow of the column in the list: HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass, and select "4D36E965-E325-11CE-BFC1-08002BE10318" to ensure that the registry item is selected. 5. If the "LowerFilters" value is displayed on the right side of the registry editor window, select the "LowerFilters" value and press the "delete" key. Click "yes" to confirm deletion. If the UpperFilters value is also listed, select "Upper Filters" in the right window and press "delete. 6. If other "UpperFilters" and "LowerFilters" Values exist in item 4D36E965-E325-11CE-BFC1-08002BE10318, delete them. 7. Close Registry Editor and restart your computer. Windows should be able to recognize the optical drive.