My hammer is used so much,it doesn't get dusty.
all kidding aside,I know it can be frustrating.
Try restarting your computer,Download an antimalware program and run it,there are several great ones for free.If you need the names,let me know.
I am trying Google Chrome as a browser.It takes a little getting used to ,but it loads sites very fast and has been great for me.
It has several interesting features on it.Check it out.
Good luck,
George