What CAN happen is that a Windows update will change some DLL in Windows that breaks something in software... usually related to the graphics adapter
What is your brand/model graphics adapter, and what is the device driver version?
IF you have nVidia...
How to determine your nVidia driver version
Right click in any open area of the Windows desktop
Select NVIDIA Control Panel from the popup window
Select SYSTEM INFORMATION at the lower left corner
Driver version should be the 1st line in Details
I have a GTX285 using driver 296.10