Blurry image (in Chrome, IDLE, ...)
http://support.microsoft.com/kb/2900023
Lower the overall Windows DPI setting. To do this, open the Display item in Control Panel (or search for "dpiscaling" from the Start screen), and then adjust the slider under Change the size of all items. You may have to click to select the check box for Let me choose one scaling level for all my displays and then change the scale to 100 percent.
Wifi not working properly
Install Intel® Centrino® Wireless-N 2230 Drivers from Intel's website!
The solution is to Change your DNS to the Google Public Setting...I have done this and haven't had a problem since. I have even confirmed this fix with my ISP and they seemed surprised that I didn't know about it.
Step 1 Control Panel---Network and Sharing Center---Change adapter settings