Causes of the error: Microsoft Windows Silverlight Error Code 100 are caused by misconfigured system files.
So, from my experience, If you got Microsoft Windows Silverlight Error Code 100 then there is a 96% chance that your computer has registry problems.
The Microsoft Windows Silverlight Error Code 100 are easy to repair. By downloading and running the registry repair tool WiseFixer, you can quickly and effectively fix this problem and prevent others from occuring. Simply click the links below for your free download.
STEP 1:That's All!
Bruce Warren





found and eliminated 234 problems in my system. After fixing the errors, my computer responded tremendously, and there are no more errors when I start up my PC.