My lenovo think pad will not see the dvd drive (HL-DT-ST BDDVDRW CT30N). I have found the following message;
Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might have installed a file that is signed incorrectly or damaged, or that might be malicious software from an unknown source. (Code 52)
How do I change the signature so I can start using the DVD player?
I think its windows 7
Try going on the manufacturers site to see if there is a driver needed.
Most recent is likely your best option, however an older one will suffice.
Go to control panel, then go to system information.
You NEED to know whether it's windows 7 or not.
Also you need to know what bit your operating system is.
So look for something like these.
Windows 7 Home Premium 32 Bit
Windows 7 Home Premium 64 Bit
Windows 7 Professional 64 Bit
Windows Vista Business 32 Bit
Windows XP etc....
Something like that.
You need that for the manuf. site.