I am running Windows 8.1 on a Surface Pro tablet, all up to date. All Microsoft files in the system are digitally signed except the following two files.
TrustedInstaller.exe, Version 6.3.9600.16384 dated 22-Aug-2013, size 98,816 bytes
TiWorker.exe, Version 6.3.9600.16384 dated 22-Aug-2013, size 190,464 bytes
Why would Microsoft not sign these files?
John