Avast Free. It was installed since December and updated as new releases came out. However, I did jump the gun and completely uninstall/reinstall the latest standalone version that is up to date.
I use the Samsung 840 Pro. I still want system restore for when I fix driver issues and things go awry - it's one of the best time-savers I've found when making driver mistakes. I just don't want to use 120GB of my SSD. I currently set it at %7 and I suppose if it happens again I'll report.
Prior to this though, it was performing the unwanted behavior for over a year. I had just disabled system restore all together, but now I'm having driver issues, and, well, I want to save time
840 Pro is an excellent consumer SSD. You should have Samsung Magician installed; settings are there to restrict data writes within it. The Advanced section will allow you to refine settings to your requirements, including allowing Windows Search to run normally. 850 EVO 120 GB is currently running at 29 GB with all programs installed under Advanced here, and is not showing any issues with 2015.10.2.2018 AIS installed. Best workaround for you would be to consider installing a disk imaging software to recover from any errors, including malware infections, in as little as 10 minutes. SSD's speed up the recovery process noticeably, cutting the image restore process by as much as 10 minutes over a SATA II drive. Plus, you can do without System Restore if you do daily incremental backups since the image creation is as good as, or better than, using the Restore function.
I have 100 GB total drive space available, with 11.18 GB utilized as disk reserve.
Not running System Restore will free up to 7 GB space according to your settings if you've set the disk reserve to default.