Hi, I'm not entirely sure, but these files look like temporary files left behind by a software or a driver update. I recommend you right click on your "C:" drive, select "Properties", then click the "Disk Cleanup" button and see if they get cleaned up. You can also use a third party cleaning software like
CCleaner to clean up your system.
If none of the cleaner deletes the files and you still want them removed then I recomment you create a new folder on your "C:" drive (e.g. "TempFiles") and move the files there. Leave them there for a given time (a week or so should be enough) and if everything on your PC works fine, then you will know they are not needed and you can safely delete them. If a problem occurs, then you can simply move them back to "C:".