Ok I have an asus computer running windows 7, Pentium processor, 6 gb RAM. Never had a problem with the computer until tonite. I ran wise reg cleaner today and when I tried streaming something to tv it wouldn't work so I decided to do a system restore after I couldn't figure it out. While it was restoring it rebooted and stayed on the boot screen forever so I decided to do a hard boot. Well now when it starts up I see the regular boot screen but when it finally starts up I see no operating system or nothing of Windows shows its just a black screen and all you can see is the mouse cursor. I do not have a Windows disk and my cd drive stop working a couple months back. Is there hope or must I take it to someone? Any help? Thank you