Windows 8 - Programs Won't Launch And DVD Drive Not Eject

I installed Windows 8 on my laptop like 5 days ago, everyone worked fine and dandy there but somehow now most of my programs won't launch but i can see it in Task Manager, my DVD drive won't open when i try to eject it physically, when i try to right click and eject it in My Computer, it freezes immediately and doesn't recover so i'd have to end it via TM.

But this is what i don't understand, after i put my Laptop to sleep by pressing briefly on the power button, when i turn it on again, the DVD drive then opens after the long time i tried to open in while using Windows, i then login and the program.s that wouldn't open like Origin and iTunes would be opened after logon..

Windows Media Player also freezes when i use it to open music files and play as it is the default player, sometimes it plays the music but it won't let me pause or change volume, sometimes i won't play at all and it'd just freeze..

And sometimes when i try to restart, the system hangs and won't actually restart leaving me to hold down and press the power button to shut-down the system. I'm almost regretting upgrading to Windows 8..