Using SEF in Joomla while in WAMP requires changing the htaccess.txt to .htaccess. I came across some articles that used “save as”, but this one using Windows command line work quickly and easily for me.

ren htaccess.txt .htaccess

http://itblog.gr/1439/rename-htaccess-txt-to-htaccess-in-windows/

I hope this helps someone else….