Please review again the possibility of updating drivers for your hardware and OS.

About the partition free space, you mentioned 11GB, but how much is the total space of that same partition?

Do you have any resident software running? Try closing anything “optional” (like adobe, which usually adds some autorun to make their tools start faster; or, say, quicktime; or some automatic defrag; or anything that is not absolutely indispensable to be active). The task manager services and processes tabs can help you identify some unneeded autoruns.