I did run xampp for a while fine. Today I installed TOR and now localhost shows only more a empty page also the XAMPP admin pages are blank! Any advise?
NO not needed. Simply stop TOR when you work with Xampp! Its not what I want as I wish to use it when I am working with Xampp, and I hope that somebody find a solution sometimes. Uninstalling is solution for those that simply give up on any problem. For any problem is a solution, I trust.
Simply change the port that TOR listens on or change the port that XAMPP listens on then you will be able to use them both together - Apache can't share the port that it uses with anything else.
Search the forum for changing the listening port in XAMPP (httpd.conf file) , or read the docs for TOR to do the same.