Can't Open Drives By Double Clicking

Recently, I purchased a built computer from a small PC shop. I had trouble connecting to the internet, so the technician who built it came and added a network adapter card and changed some settings. (Not sure what he did.) After he left, my drives were not detected at all, not in My Computer nor in Device Manager so I did a system restore, which got the drives back but then I had trouble connecting to the internet again. So, I undid the system restore and connected OK again. A day later, I noticed I could not open a disc by double clicking on the drive in My Computer. I have two optical drives and its the same with both drives. I can right click and open to view files but not play disc. ( Movie nor music.) I can play them through the autoplay dialogue box though. I went into safe mode and tried and they will play in there by double clicking the drive. What happens when I try to play by double clicking the drive is I got a message first saying, The file does not have a program associated with it for performing this action. Please install a program or if one is already installed, create an association in the Default Programs Control Panel. I checked the Default Programs and they were set properly. Then, when I tried double clicking the drives again, got a different message. This time saying, Windows cannot access the specified device, path or file. You may not have the appropriate permissions to access this item. I also ran MalwareBytes and MSE in both normal and safe modes. Nothing was detected either place. I also went into Device Manager and uninstalled the drives and restarted my computer for them to be detected again and they were but still didnt correct the problem.