Hired MS Assure to fix my email which would not load.  Tech recommended upgrading to 2013 which I did.  email works fine but I now have NO access to my CD / DVD drives.  I have one built in and one external (usb).  USB drive operates fine on my laptop.  

I have deleted and restored drivers with no result.  Error message in device MGR says:  "Windows cannot verify the digital signature for the drivers required for this device.  A recent hardware or software change.....etc.  Code 52

A portable floppy drive still works as do usb flashdrives.

Check these : 

http://www.wintips.org/how-to-fix-windows-cannot-verify-the-digital-signature-for-this-file-error-in-windows-8-7-vista/

http://answers.microsoft.com/en-us/windows/forum/windows_7-hardware/windows-cannot-verify-the-digital-signature-for/1394eda4-2485-47a0-880f-95015995ac2d

https://technet.microsoft.com/en-us/library/ff710454(v=ws.10).aspx

because maybe installation software change the registry setting, I would suggest you first do clean boot

http://support.microsoft.com/kb/929135

try also reset your BIOS setting

after that try to delete upper lower filter

https://support.microsoft.com/kb/929461/en-us

if doesn't work try to uninstall ODD at device manager and let windows detect your ODD automatically 

you can also temporary solved this case by disabling driver signature at advance boot option

http://windows.microsoft.com/en-us/windows/advanced-startup-options-including-safe-mode#1TC=windows-7

• Edited by britishdhez 4 hours 39 minutes ago

because maybe installation software change the registry setting, I would suggest you first do clean boot

http://support.microsoft.com/kb/929135

try also reset your BIOS setting

after that try to delete upper lower filter

https://support.microsoft.com/kb/929461/en-us

if doesn't work try to uninstall ODD at device manager and let windows detect your ODD automatically 

you can also temporary solved this case by disabling driver signature at advance boot option

http://windows.microsoft.com/en-us/windows/advanced-startup-options-including-safe-mode#1TC=windows-7

• Edited by britishdhez Monday, February 16, 2015 7:04 AM

because maybe installation software change the registry setting, I would suggest you first do clean boot

http://support.microsoft.com/kb/929135

try also reset your BIOS setting

after that try to delete upper lower filter

https://support.microsoft.com/kb/929461/en-us

if doesn't work try to uninstall ODD at device manager and let windows detect your ODD automatically 

you can also temporary solved this case by disabling driver signature at advance boot option

http://windows.microsoft.com/en-us/windows/advanced-startup-options-including-safe-mode#1TC=windows-7

• Edited by britishdhez Monday, February 16, 2015 7:04 AM

because maybe installation software change the registry setting, I would suggest you first do clean boot

http://support.microsoft.com/kb/929135

try also reset your BIOS setting

after that try to delete upper lower filter

https://support.microsoft.com/kb/929461/en-us

if doesn't work try to uninstall ODD at device manager and let windows detect your ODD automatically 

you can also temporary solved this case by disabling driver signature at advance boot option

http://windows.microsoft.com/en-us/windows/advanced-startup-options-including-safe-mode#1TC=windows-7

• Edited by britishdhez Monday, February 16, 2015 7:04 AM
• Proposed as answer by FangZhou ChenMicrosoft contingent staff, Moderator 1 hour 36 minutes ago

Hello Johnhal,

What is your current situation?

Have you tried the solution as MVP arnavsharma and britishdhez mentioned?

Best regards,
Fangzhou CHEN