I have a Surface Pro 3, Oct 28 firmware i5/256GB Win 8.1. Windows Defender as a the Anti Virus. About once per day, or maybe every other day (I cant detect a pattern yet), and since I first got the machine, through some process User Account Control (UAC) is being lowered to 'Never Notify'. This if course breaks Metro Apps. I can use UserAccountControl with no problem to reset to the normal setting for Win8.1/Metro to function. I am assuming that some application or configuration element is causing this. 1. I have run MalwareBytes Anti-Malware 2. scanned for viruses 3. Corporate IT swears there is nothing they are doing or have no configuration My question is, is there some way to log what application is changing the UserAccountControl level? Any other suggestions on what may be doing this?