I have encountered exactly the same problem. The desktop icons reset their position after reboot. I encounter this problem today 24/09, but fortunately I have had made a tureimage backup point yesterday 23/09. After applying the restore file, I notice that ANTIVIRUS 8 pickup 3 potential malicious files (which are only 3 .lnk files!) immediately once the system reboots and thereafter the desktop icons reset.
the log reads:
24/09/2015 18:19:20 Real-time file system protection file C:\ProgramData\Microsoft\Windows\Start Menu\Programs\K-Lite Codec Pack\Configuration\LAV Audio (x64).lnk LNK/Agent.BS trojan cleaned by deleting - quarantined CLAUDEGT70\Claude Event occurred during an attempt to access the file by the application: C:\Program Files (x86)\AMD\ATI.ACE\Core-Static\CCC.exe.
24/09/2015 18:19:20 Real-time file system protection file C:\ProgramData\Microsoft\Windows\Start Menu\Programs\K-Lite Codec Pack\Configuration\LAV Splitter (x64).lnk LNK/Agent.BS trojan cleaned by deleting - quarantined CLAUDEGT70\Claude Event occurred during an attempt to access the file by the application: C:\Program Files (x86)\AMD\ATI.ACE\Core-Static\CCC.exe.
24/09/2015 18:19:20 Real-time file system protection file C:\ProgramData\Microsoft\Windows\Start Menu\Programs\K-Lite Codec Pack\Configuration\LAV Video (x64).lnk LNK/Agent.BS trojan cleaned by deleting - quarantined CLAUDEGT70\Claude Event occurred during an attempt to access the file by the application: C:\Program Files (x86)\AMD\ATI.ACE\Core-Static\CCC.exe.