Hi, guys. I just found two folders with gobbledygook alpha numeric names in one of my hard drives. I have no clue what they are. I did thorough Eset, Malwarebytes, and Super Anti-Spyware scans on my machine, none of which yielded anything. I checked the timestamps. The folders and the files were created at around the time I updated Windows just a few hours ago. I downloaded 10 security updates from Windows earlier today -- rather heavy since the previous update (last Tuesday) consisted of a single Windows Defender file. I'm really hoping that these are harmless leftovers from the Windows update. I checked them and inside one folder is an .exe file named MpMiniSigStub.exe while the other contains a file named mrtstub.exe. The strange folders are in the hard drive that I reserve for games. It is the drive with the most free space. I'm thinking of doing a complete re-install of Windows. Should I assume that my machine is infected with malware? Thanks in advance for your advice.