I haven't had any blurred icons on the desktop in Windows 8. Everything in File Explorer (Windows Explorer) is also clear.
The grey-scale anti-aliasing problem is usually most noticeable with text in IE10.
Your particular problem is beginning to look like it could be hardware related.
You will need to eliminate hardware problems as a possible cause.
Does your PC have a separate graphics card?
If it does, you could try re-seating it (if you are comfortable doing so).
I would also try a different monitor cable if you have one.


