Quote: Originally Posted by
sidewinder 
Does anyone have technical information to backup the assertion that disabling UAC will slow down Vista? Or is this just something somebody heard and passes along as fact? Where are the details? Why is this not common knowledge and why is this not reported as an issue all over the Internet by people who have turned off UAC?
Its not a issue for everyone with superfast computers, some do have this problem while others dont...Its also just something most people dont care about since they never check there Performance logs (Event_Viewer\Applications & Services Logs\Microsoft\Windows\Diagnostics-Performance\Operational) You can see the time takes to boot drivers and services from there,
I dont disable UAC so I dont know if this problem still exists, I think it was partially fixed for 85% of users not using UAC when ServicePack1 was released this year...
Find out for yourself, just look at the Performance Log boot times with UAC enabled over a few days then do the same with it turned off and compare the average boot time...You will find it boots faster with UAC enabled.
This is the original article I read a few months ago just before SP1 was released...Chris123NT is a highly respected Microsoft MVP
Chris123NT’s Blog » Publications » Vista’s UAC Failing Once Again Quote:
How long is this Integrity-Level (IL) check timeout? Can it be adjusted?
The timeout is about 0-5 seconds when It doesn't get a IL-Check response with UAC disabled but it depends all on your hardware and current CPU utilization... When UAC is enabled that time is infinite since you have to authorize the prompt or enter a password to continue...It cant be adjusted because its hard-coded into the Kernel but if your not maxing your CPU utilization its absolutely nothing to worry about
