1. Go to C:\Program Files\Common Files\microsoft shared\ in windows Explorer and see if you have two ClickToRun folders.

2. If yes and one folder is just named “ClickToRun” the other is “ClickToRun578949651615” (the numbers don’t matter). Check and       see what resides in both of them. If ClickToRun is empty like mine was and every file including the for mentioned “missing” file       in the error message is in the other stranger “clicktorun4384849279” folder just cut or copy and paste the contents to the               normal “ClickToRun” Folder.