i need some help

If the CD/DVD is not showing in Device Manager follow these directions for clearing the Upper/Lower Filters

Click on Start, Run and type in 'regedt32' and press Enter

Expand the "HKEY_LOCAL_MACHINE" key by clicking the "+" next to it.

Expand the "SYSTEM" Key

Expand the "CurrentControlSet" Key

Expand the "Control" Key

Expand the "Class" Key

Look for a key containing the following string of letter and numbers:{4D36E965-E325-11CE-BFC1-08002BE10318}

High light this key by left clicking on it

On the right hand side you are looking for "UpperFilters" and "LowerFilters" under the "Name" column, once you find these Keys delete them by right clicking on them and choosing "delete" exit the registry.

Restart your PC.

If the drive is not present in the Disk Management window or if you are not able to access it, then the drive may have failed. In this window you should see all of your connected physical drives, their format, if they are healthy, and the drive letter.

Change the drive letter of the drive. Right-click on the drive in the list, and from the resulting menu select "Change Drive Letters and Paths"

Click on Change so you can change the drive letter. Click Change.

Select a new drive letter from the drop down list, preferably the one that is not normally used for this drive. EG: U:

Let us know how you get on.