Hello SafeSurf (GREAT screename, BTW!) and thank you for the reply & info, I had seen and read the HowToGeek tutorial on UAC before, HowToGeek is a terriffic site and one of my favorites.
To answer your question, yes I installed Avast using Admin acct, I haven't even created a limited user acct yet, so that was automatically ruled out---I even ran the installer with right click "Run as Admin" prompt. I followed your suggestions using your exact instructions--I tried a repair install--No Joy,
UAC still prompted at reboot. I did a clean uninstall/reinstall---I did not have to use the Uninstall Tool as it uninstalled cleanly thru add/remove. After reinstalling & rebooting---several times---NOPE! UAC still popped up.
On a whim, I ran Autoruns and opened the AvastUI.exe startup entry in the registry and noticed something that appeared odd, to me at least it did. The entry is located @ HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run with the Value Name: avast5 and Value Data: "C:\Program Files\Alwil Software\Avast5\avastUI.exe
" /nogui. I changed the Value Data to "C:\Program Files\Alwil Software\Avast5\avastUI.exe /nogui
"--notice the location of the 2nd
" quote mark in the original Value and in the modified Value-- rebooted--- and EUREKA!!! No UAC prompt!!!
Proving once again the old adage that even a blind squirrel finds a nut every now and then...LOL!Thanks again for the info and help!