So I've recently encountered this yesterday and for some reason my SSD keeps on getting lower and lower storage space and my display is all messed up.
Emsisoft, malwarebytes, ESET, hitmanpro, tdsskiller, rougekiller ALL failed to find and resolve the issue.
and considering for some reason my explorer.exe restarts at times.
Every time Windows creates a restore point it will suck up disk space. By default Windows will use any remaining space available (up to 100%) on the system drive for that purpose. You can change the setting to only allow a certain percentage of the system drive to be used for that purpose. I've set mine to use no more than 10% of my SSD for that purpose.
Sorry for the late reply but I have a AMD FX 8350, AMD r9 290x asus oc, Samsung 840 evo as main drive, some gold rated power supply, and corsair 16gb 2133mhz ram. I found out this wasn't a infection and my SSD has failed entirely, I can't recover any data from the drive.
http/i.gyazo.com/2c1cbac5a4c628cb2a32a2aa15a93175.png as you can see here the ssd is not a boot option although it's still detected my master boot record is now messed up because of this. MBR error 1 and I don't want to put a windows 8 CD to repair this as I'm installing Ubuntu as main OS