Cannot save my photo edits!

I've been using Windows photo gallery for years and love it, but yesterday I downloaded Picasa and since then have not been able to save my edits!  I deleted Picasa but still nothing.  I reinstalled Windows photo gallery via Softonic after completely removing it but something called Safeweb has appeared.  Thinking it was some sort of malware, I tried to remove but I cannot uninstall it!!  I think these things are all connected and corrupted Windows photo gallery .. PLEASE HELP!!