Ron has downgraded back to Windows 7 because he uses Picasa. He's now having issues with Picasa running, though. Leo says that Picasa development may have ceased because of Google Photos. Google didn't migrate Picasa Web to the new Photos system and it's likely that Google Plus will be discontinued down the road. So who knows what the future has in store.
There are alternatives to Picasa -- LightZone is a good alternative. It's the open source version of Lightroom. Ron should also check out the website AlternativeTo.net. It'll give him a good list of alternatives with some pay and some free.