|mmm Not sure what's amiss here... But as possible "quick fix" try running this freebie utility. I have used/tested it a couple of times to great success. It does what it says. It may resolve the problems as posted; it may not. If it cannot resolve the problem(s) it will not damage the system in its efforts.|
It can be run in normal or safe-mode; they recommend safe-mode if possible.
Follow the steps carefully and do as it advises.
It is a freebie; but they appreciate wee donation if so inclined.
As with all software/utilities downloaded from the web - use the manual/custom installation option; never the automatic... Double check that all pre-checked boxes are unchecked apart for the one for the item required. That way you avoid all manner of unwanted "stuff" and subsequent problems...
My first use of this utility was to resolve similar access problems; XP-Pro and not able to access the web... Can't recall all the "error messages that cropped up). A trawl across the web took me to a site that discussed similar issues, and pointed to this utility - which resolved it all.