I've just run into this problem with the second
client in about the last 4 months. I was wondering if anybody knows what might be causing this:Symptoms:
This is an issue with permissions.
Without warning, the default user with administrative elevation rights is suddenly no longer able to install anything - or run most programs - EXCEPT using the "Run as Administrator" option under Windows 7 Pro.
a) The system has been checked for both malware and rootkits, and has been reported as being 'clean' after using multiple anti-malware/spyware scanners in both normal and safe mode bootups.
b) The system has been checked and does not
have the infamous KB2823324 installed
c) The user profile does not appear to be corrupted
d) The user profile is flagged as an Administrator
e) The machine is current with all Windows critical updates
f) No new apps or app updates have been recently installed
g) Completely disabling UAC is not
an acceptable option
Possible smoking gun:
Both affected machines were runing AVG AntiVirus 2013 - although so is every other machine in both client offices. No other machines experienced the symptoms either of the problem machines were experiencing.Current workaround:
Going back a restore point (or two) has fixed the problem in both cases
That's about it. No weirdness I can spot - other than this problem - which starts happening without warning. I'm fairly certain it involves some issue with the user profile although I wasn't able to diagnose anything wrong with the profiles on either machine. Just plain weird.
So...anybody know what might be causing this?