How to solve the code 19 errors

Error Code 19 means that the registry is corrupted. Try the following fix:

1. Click Start and then click All Programs.
   
2. Click Accessories, and then click Run.
3. Type regedit, and then click OK. In the navigation pane, locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}
4. In the right pane, click UpperFilters. On the Edit menu, click Delete.
5. When you are prompted to confirm the deletion, click Yes.
6. In the right pane, click LowerFilters. On the Edit menu, click Delete.
7. When you are prompted to confirm the deletion, click Yes.
8. Exit Registry Editor.
9. Restart the computer.

1. Click Start and then click Control Panel.
   
2. Click System and Maintenance, click System, and then click Device Manager.
   In Device Manager, expand DVD/CD-ROM drives, right-click the CD and DVD devices, and then click Uninstall.
3. When you are prompted to confirm that you want to remove the device, click OK.
4. Restart the computer.