Optiarc DVD RW AD-7190A

i have this product installed on my computer it worked just fine and then all of a sudden it is telling me that it can not load device driver for this hardware, it maybe corrupted or missing? i have searched every where for the driver can any one please help me thanks!

Hi and Welcome!

please have a look at this MSKB article: http://support.microsoft.com/kb/314060