Could you provide a bit more detail please, if possible. For example when do these messages pop up? are you in a browser ( Internet explorer ? ) when they occur, or do they just appear when you have nothing open at your desktop?
IF they are popping up when you are using Internet Explorer, have a read of this to see if it gives any pointers - https://support.microsoft.com/en-us/kb/308260 ( sadly it is quite long ).
You could also try disabling the IE script debugger, but that may be more like hiding the fault rather than fixing it, assuming it helps at all.
Open IE, Tools, Internet Options, [Advanced] tab, click 'Disable Script Debugging ( IE ) press OK, close IE and re-open it to see if its helped. There is also 'Disable Script Debugging ( other ) to try to see if that helps. If they don't help, reset them.
If that doesn't help, or you need more assistance, please post back and someone will try to assist.