Something tells me that you may be having some driver problems. You have installed/removed many different components, but you have not mentioned anything about uninstalling the drivers.
Would you mind d/l Everest Home
? It is free, and from the link, you can decide between the self-extracting EXE file or the ZIP file.
This program will tell you everthing about your computer-down to the bytes, literally. When you open this application, click Report, check Custom select ->next, uncheck all checkboxes except for the first one (Everest-report), and Computer. Check the little + next to Computer, and check the first entry, summary -> click next. Select Plain text, and when the report comes up, highlight the entire report (click anywhere on it and press CTRL+A), right-click in the highlighted area, and select copy. Right-click the text portion of your reply, and select paste.
We are all curious like a cat. We wonder, we ask, we learn.
Please post back when a suggestion works, so that others may learn.